1050
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 6
- Digital Root
- 6
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 24
- Divisor Sum
- 2976
- Proper Divisor Sum (Aliquot Sum)
- 1926
- 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
- 240
- Möbius Function
- 0
- Radical
- 210
- Omega Function (Ω)
- 5
- 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
- yes
- Narcissistic Number
- no
- Collatz Steps
- 31
- 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
- Stirling numbers of the second kind, S(n,5).at n=3A000481
- Number of nonnegative solutions to x^2 + y^2 <= n^2.at n=36A000603
- a(n) = 5*binomial(n, 6).at n=10A000910
- a(n) = sigma_2(n): sum of squares of divisors of n.at n=27A001157
- Stirling numbers of the second kind S(n+3, n).at n=5A001297
- Number of integer points in a certain quadrilateral scaled by a factor of n.at n=48A002789
- a(n) = (2n+4)!/(4!*n!*(n+1)!).at n=3A002803
- Denominators of Van der Pol numbers.at n=6A003163
- Numbers that are the sum of 7 positive 6th powers.at n=13A003363
- The smaller of a betrothed pair.at n=2A003502
- Roman numerals with 1 letter, in numerical order; then those with 2 letters, etc.at n=34A003587
- Roman numerals with 1 letter, in alphabetical order; then those with 2 letters, etc.at n=28A003588
- Expansion of e.g.f. cos(log(1+x)).at n=7A003703
- Degrees of irreducible representations of alternating group A_12.at n=17A003867
- Degrees of irreducible representations of alternating group A_12.at n=16A003867
- Betrothed (or quasi-amicable) numbers.at n=4A005276
- Generalized Fibonacci numbers A_{n,3}.at n=26A006208
- Low temperature antiferromagnetic susceptibility for cubic lattice.at n=8A007217
- Numbers k such that sigma(x) = k has exactly 3 solutions.at n=27A007372
- Prime(n)*...*prime(a(n)) is the least product of consecutive primes that is non-deficient.at n=22A007684