12244
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 13
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 21434
- Proper Divisor Sum (Aliquot Sum)
- 9190
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 6120
- Möbius Function
- 0
- Radical
- 6122
- Omega Function (Ω)
- 3
- 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
- 50
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- Squarefree Number
- no
- 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
- yes
- Odd
- no
Appears in sequences
- Coefficients of iterated exponentials.at n=4A000406
- T(n,n+2), array T as in A047140.at n=8A047147
- Numbers k such that k*2^m+1 are composites for all exponents m in the range 0<=m<=k.at n=27A061153
- Integer averages of two successive perfect powers (pp(n) + pp(n+1))/2.at n=26A075454
- Triangle read by rows, generated from Stirling cycle numbers.at n=49A111933
- Number of LDU's in all skew Dyck paths of semilength n.at n=9A128737
- Omit the initial 1 from A000141 and take the Mobius transform.at n=26A190622
- Numbers that are midway between the nearest square and the nearest cube.at n=18A233075
- Number of 2Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of the elements above it or zero plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4.at n=12A241398
- Number of partitions p of n such that (number of numbers in p of form 3k+1) < (number of numbers in p of form 3k+2).at n=41A241737
- Triangle read by rows: T(n,k) is the coefficient A_k in the transformation of 1 + x + x^2 + ... + x^n to the polynomial A_k*(x-3k)^k for 0 <= k <= n.at n=42A248978
- Number of primes between n and 2^n exclusive.at n=16A284275
- Number of nX2 0..1 arrays with every element unequal to 0, 1 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.at n=18A317767
- Where ones occur in A349085. These correspond to rationals, 0 < p/q < 1, that have a unique solution, p/q = 1/v + 1/w + 1/x + 1/y + 1/z, 0 < v < w < x < y < z.at n=30A349098
- The fixed points of A355702.at n=28A356017
- Expansion of Product_{i>=1, j>=0} (1 + x^(i * 7^j)).at n=55A373221