15477
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 24
- Digital Root
- 6
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 16
- Divisor Sum
- 26112
- Proper Divisor Sum (Aliquot Sum)
- 10635
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 7920
- Möbius Function
- 1
- Radical
- 15477
- Omega Function (Ω)
- 4
- Little Omega Function (ω)
- 4
Special
- Factorial
- no
- Catalan Number
- no
- Bell Number
- no
- Motzkin Number
- no
- Primorial
- no
Figurate Numbers
- Fibonacci Number
- no
- Triangular Number
- no
- Perfect Square
- no
- Perfect Cube
- no
- Pentagonal Number
- no
- Hexagonal Number
- no
- Lucas Number
- no
- Tetrahedral Number
- no
- Pell Number
- no
- Tribonacci Number
- no
- Pronic Number
- no
Recreational
- Happy Number
- no
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 146
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- Squarefree Number
- yes
- Prime Power
- no
- Prime Factorization
- no
- Twin Prime
- no
- Mersenne Prime
- no
- Sophie Germain Prime
- no
- Safe Prime
- no
- Powerful Number
- no
- Achilles Number
- no
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Appears in sequences
- Number of partitions of n into 8 unordered relatively prime parts.at n=44A023028
- s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (natural numbers), t = A001950 (upper Wythoff sequence).at n=39A024864
- a(n)^3 is smallest cube containing exactly n 3's.at n=6A048368
- Numbers k such that k | 6^k + 5^k + 4^k + 3^k + 2^k + 1^k.at n=46A056745
- Numbers whose cubes contain more than half the same digit and do not end in 0.at n=34A060814
- Expansion of 1/(1 - x - x^3 + x^5).at n=46A123552
- Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, -1), (-1, -1, 0), (-1, 1, 1), (1, 0, -1), (1, 1, 1)}.at n=8A149562
- Polynomial expansion of p(x)=1/(1 - 3 x + 2 x^2 + 2 x^3 - 4 x^4 + 4 x^5 - 2 x^6 - 2 x^7 + 3 x^8 - x^9 - x^17 + 3 x^18 - 2 x^19 - 2 x^20 + 4 x^21 - 4 x^22 + 2 x^23 + 2 x^24 - 3 x^25 + x^26).at n=36A164787
- Triangular array: T(n,k) counts upper triangular matrices with entries from {0,1} having n 1's in total, with k 1's on the main diagonal and at least one nonzero entry in each row.at n=41A182319
- Number of rooted trees with n nodes and omega-valency 3.at n=14A193488
- a(n) = 7*n*(2*n + 1).at n=33A195026
- Composite squarefree numbers n such that p(i)-9 divides n+9, where p(i) are the prime factors of n.at n=39A225709
- Number of paths from (0,1) to the line x = n, each consisting of segments given by the vectors (1,1), (1,2), (1,-1), with vertices (i,k) satisfying 0 <= k <= 3.at n=14A247353
- Number of length-n 0..6 arrays with no repeated value greater than or equal to the previous repeated value.at n=4A269407
- T(n,k)=Number of length-n 0..k arrays with no repeated value greater than or equal to the previous repeated value.at n=49A269409
- Number of length-5 0..n arrays with no repeated value greater than or equal to the previous repeated value.at n=5A269411
- Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 197", based on the 5-celled von Neumann neighborhood.at n=28A270718
- Number of interior vertices formed by drawing the lines connecting any two of the 2*(n+2) perimeter points of a 3 X (n+1) square grid.at n=15A331767
- Numbers which are the product of two S-primes (A057948) in exactly three ways.at n=10A343828
- Number of integer partitions of n with as many even parts as even conjugate parts.at n=48A350948