1232
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 8
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 20
- Divisor Sum
- 2976
- Proper Divisor Sum (Aliquot Sum)
- 1744
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 480
- Möbius Function
- 0
- Radical
- 154
- Omega Function (Ω)
- 6
- Little Omega Function (ω)
- 3
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
- yes
- Narcissistic Number
- no
- Collatz Steps
- 26
- 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
- Number of trees of diameter 4.at n=23A000094
- Coefficients of ménage hit polynomials.at n=3A000185
- Euler transform of A000389.at n=5A000417
- Number of degree-n permutations of order exactly 3.at n=8A001471
- Expansion of (Product_{j>=1} (1-(-x)^j) - 1)^8 in powers of x.at n=12A001486
- Negated coefficients of Chebyshev T polynomials: [x^n](-T(n+6, x)), n >= 0.at n=5A001794
- Number of partitions of 3n-1 into n nonnegative integers each no more than 6.at n=14A001978
- Generalized tangent numbers.at n=3A002302
- Cluster series for b.c.c. lattice.at n=4A003210
- Denominators of coefficients of Green function for cubic lattice.at n=6A003283
- Degrees of irreducible representations of alternating group A_11.at n=27A003866
- Degrees of irreducible representations of symmetric group S_11.at n=48A003875
- Degrees of irreducible representations of symmetric group S_11.at n=49A003875
- Sequence and first differences (A030124) together list all positive numbers exactly once.at n=44A005228
- Fermionic string states.at n=12A005309
- Number of words of length n in a certain language.at n=21A005819
- Number of labeled ordered partitions of an n-set into odd parts.at n=6A006154
- Numbers k such that k^8 + 1 is prime.at n=48A006314
- Numbers k such that sigma(x) = k has exactly 3 solutions.at n=32A007372
- Inverse Moebius transform applied twice to squares.at n=23A007433