14917
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 22
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 17056
- Proper Divisor Sum (Aliquot Sum)
- 2139
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 12780
- Möbius Function
- 1
- Radical
- 14917
- Omega Function (Ω)
- 2
- Little Omega Function (ω)
- 2
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
- 71
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- yes
- 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
- Sum of 12 nonzero 8th powers.at n=32A003390
- a(n) = 1*t(n) + 2*t(n-1) + ...+ k*t(n+1-k), where k=floor((n+1)/2) and t is A001950 (upper Wythoff sequence).at n=39A023867
- 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=38A024864
- Sums of terms of groups in A075621.at n=30A075625
- Row sums of triangle A131429.at n=8A131430
- Number of binary strings of length n with no substrings equal to 0000, 0001, or 1100.at n=17A164415
- (A178476(n)-3)/9.at n=30A178486
- Eigentriangle of triangle A085478.at n=37A186023
- Number of 2-separable partitions of n; see Comments.at n=51A239468
- Numbers k such that (13*10^k - 37)/3 is prime.at n=20A291178
- a(n) = 2*p(n)*p(n+2) - p(n+1)^2 where p(k) = k-th prime.at n=28A324795
- G.f.: Sum_{n>=0} (n+1)*(n+2)/2 * x^n * (1 + x^n)^n.at n=36A326003
- Numbers that are the sum of seven fourth powers in five or more ways.at n=34A345571
- Numbers that are the sum of seven fourth powers in exactly five ways.at n=33A345827
- Number of intersection points when every pair of vertices of a row of n adjacent congruent rectangles are joined by an infinite line.at n=15A347750
- Numbers k such that k, k + 1, k + 2, and k + 4 are all semiprimes.at n=42A368670