1498
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 22
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 4
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 2592
- Proper Divisor Sum (Aliquot Sum)
- 1094
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 636
- Möbius Function
- -1
- Radical
- 1498
- Omega Function (Ω)
- 3
- 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
- no
- Narcissistic Number
- no
- Collatz Steps
- 47
- 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
- yes
- Odd
- no
Appears in sequences
- One half of number of non-self-conjugate partitions; also half of number of asymmetric Ferrers graphs with n nodes.at n=27A000701
- Absolute values of coefficients of an elliptic function.at n=5A001941
- Number of Twopins positions.at n=19A005691
- Number of fanout-free Boolean functions of n variables using And, Or, Not and Majority gates.at n=4A005743
- Coordination sequence T2 for feldspar.at n=26A008255
- Coordination sequence T2 for Milarite.at n=24A008257
- Coordination sequence for D_7 lattice.at n=2A008359
- Expansion of e.g.f.: cosh(sin(x)*exp(x)).at n=7A009147
- Expansion of cosh(tanh(x)*exp(x)).at n=7A009171
- a(n) is the concatenation of n and 7n.at n=13A009441
- Number of distinct orders of permutations of n objects; number of nonisomorphic cyclic subgroups of symmetric group S_n.at n=55A009490
- Coordination sequence T2 for Zeolite Code RSN.at n=25A009886
- Coordination sequence for CaF2(1), F position.at n=13A009924
- a(n) = floor(binomial(n,3)/3).at n=31A011849
- Numbers k such that phi(k) | sigma_13(k).at n=38A015771
- Numbers k such that phi(k) + 12 | sigma(k).at n=41A015805
- Expansion of 1/(1-x^7-x^8-x^9-x^10-x^11-x^12-x^13).at n=47A017862
- Numbers k such that the continued fraction for sqrt(k) has period 26.at n=32A020365
- Fibonacci sequence beginning 2, 26.at n=10A022375
- Numerator of n*(n-3)*(3*n^2-6*n+2)/(3*(n-1)*(n-2)).at n=4A023417