10140
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 6
- Digital Root
- 6
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 36
- Divisor Sum
- 30744
- Proper Divisor Sum (Aliquot Sum)
- 20604
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 2496
- Möbius Function
- 0
- Radical
- 390
- Omega Function (Ω)
- 6
- 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
- 86
- 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
- Deficit in peeling rinds.at n=9A005675
- a(n) = floor(n*(n - 1)*(n - 2)/31).at n=69A011913
- Numbers whose base-10 representation has exactly 5 runs.at n=27A043641
- Composites whose sum of digits equals number of its prime factors, with multiplicity.at n=40A050689
- McKay-Thompson series of class 22a for Monster.at n=23A058569
- a(n) = 15*n^2.at n=26A064761
- Number of evil primes (A027699) in range ]2^n,2^(n+1)].at n=17A095006
- If p(x) is the x-th prime, then the n-th set of 4 consecutive sexy prime pairs starts at p(a(n)).at n=15A095963
- Row sums of triangle A096811, in which A096811(n,k) equals the k-th term of the convolution of the two prior rows indexed by (n-k) and (k-2).at n=32A096814
- Row sums of A071946.at n=8A119254
- Numbers k such that for any single digit d of k the d-th semiprime sp(k) is substring of k.at n=22A135441
- 13 times triangular numbers.at n=39A152741
- Averages of twin prime pairs of A154546.at n=36A154548
- Numbers k such that k-1, k+1, and k^2-k-1 are primes.at n=35A154666
- a(n) = A000041(n) - A032741(n).at n=33A167934
- Number of ways to place 2 nonattacking queens on an n X n toroidal board.at n=12A172517
- Numbers k such that k^2 +-11 are primes.at n=32A176683
- a(n) is the smallest 5-digit number with exactly n divisors, or a(n) = 0 if no such number exists.at n=35A182697
- 13 times hexagonal numbers: a(n) = 13*n*(2*n-1).at n=20A194713
- Number of ways to place 2 nonattacking nightriders on an n X n toroidal board.at n=12A196812