10571
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 14
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 11916
- Proper Divisor Sum (Aliquot Sum)
- 1345
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 9300
- Möbius Function
- 0
- Radical
- 341
- 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
- 104
- 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
- no
- Odd
- yes
Appears in sequences
- Coordination sequence for Ni2In, Position Ni1 and In.at n=31A009941
- Discriminants of totally complex sextic fields (negated).at n=2A023687
- a(n) = T(n,n-1), T given by A026536. Also a(n) = number of integer strings s(0), ..., s(n), counted by T, such that s(n) = 1.at n=12A026538
- a(n) = 11*n^2.at n=31A033584
- Number of asymmetric forests with n nodes.at n=19A035056
- a(n) = A055450(n, n-5).at n=8A055455
- Number of 3-element ordered antichain covers of an unlabeled n-element set.at n=9A056074
- a(n) = floor(C(n+8,8)/C(n+2,2)).at n=19A084631
- Structured rhombic triacontahedral numbers (vertex structure 7).at n=10A100165
- a(1)=1. a(n) = a(n-1) + sum of the triangular numbers which are among the first (n-1) terms of the sequence.at n=26A100963
- Boustrophedon transform of the Jacobsthal numbers.at n=8A101473
- Sum array of Catalan numbers (A000108) read by upward antidiagonals.at n=51A106534
- Triangle T(n,m) = A060187(n+1,m+1) + 2*binomial(n,m) - 2, read by rows.at n=23A178122
- Triangle T(n,m) = A060187(n+1,m+1) + 2*binomial(n,m) - 2, read by rows.at n=25A178122
- a(n) = n^3 + (3^n+1)/2.at n=9A241527
- Number of length 2+2 0..n arrays with the medians of every three consecutive terms nondecreasing.at n=9A250141
- Numbers n such that the decimal expansions of both n and n^2 have 0 as smallest digit and 7 as largest digit.at n=37A256634
- Partial sums of A147562.at n=31A272928
- Triangle A106534 with reversed rows.at n=48A280470
- Number of nX4 0..1 arrays with every element equal to 0, 1 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=10A302159