9076
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
- 1
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 15890
- Proper Divisor Sum (Aliquot Sum)
- 6814
- 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
- 4536
- Möbius Function
- 0
- Radical
- 4538
- 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
- 65
- 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
- Expansion of 1/((1+x)*(1-x)^12).at n=6A001808
- a(n) = floor( n*(n-1)*(n-2)/25 ).at n=62A011907
- G:=1/product((1-x^(3k-2))*(1-x^(3k-1))^2*(1-x^(3k))^3,k=1..infinity).at n=20A029864
- [ exp(10/17)*n! ].at n=6A030890
- Numbers whose set of base-14 digits is {3,4}.at n=21A032838
- Number of connected 2-element multiantichains on a labeled n-set.at n=9A094734
- a(n) = 3*L(2*n)/5 - (-1)^n/5, where L = A000032.at n=10A099016
- Number of permutations of floor(i*7/5), i=0..n-1, with all sums of 2 through 4 adjacent terms respectively unique.at n=7A147938
- Number of permutations of floor(i*7/5), i=0..n-1, with all sums of 2 through 5 adjacent terms respectively unique.at n=7A147947
- Number of planar n X n X n binary triangular grids symmetric both under 120 degree rotation and reflection with every one adjacent to exactly 1 other one.at n=18A153984
- The number of trisubstitution products with composition C_n H_(2n-1) X_2 Y.at n=16A159940
- Expansion of (2/(3*sqrt(1-4*z)-1+4*z))*((1-sqrt(1-4*z))/(2*z))^k with k=5.at n=6A172062
- Sum of distinct positive fifth powers.at n=46A194768
- Number of unimodal maps [1..n]->[0..3].at n=11A223659
- Number of (n+1)X(1+1) 0..7 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 14.at n=1A234338
- Number of (n+1)X(2+1) 0..7 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 14.at n=0A234339
- T(n,k)=Number of (n+1)X(k+1) 0..7 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 14.at n=1A234343
- T(n,k)=Number of (n+1)X(k+1) 0..7 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 14.at n=2A234343
- Square roots of numbers in A238334.at n=45A238335
- Numbers n such that both n*log(2) and n*log(3) are within 1/sqrt(n) of integers.at n=32A259483