8879
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 32
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 9576
- Proper Divisor Sum (Aliquot Sum)
- 697
- 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
- 8184
- Möbius Function
- 1
- Radical
- 8879
- Omega Function (Ω)
- 2
- 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
- 171
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- yes
- 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
- no
- Odd
- yes
Appears in sequences
- Numbers that are the sum of 8 positive 7th powers.at n=31A003375
- Expansion of Molien series for 8-dimensional real Clifford group 2^{1+6}.Alt_8.2 of genus 3 and order 5160960.at n=46A024186
- Numbers whose set of base-14 digits is {3,4}.at n=16A032838
- Number of partitions in parts not of the form 21k, 21k+3 or 21k-3. Also number of partitions with at most 2 parts of size 1 and differences between parts at distance 9 are greater than 1.at n=36A035981
- Numbers whose base-4 representation contains exactly four 2's and two 3's.at n=30A045155
- Starting positions of strings of 3 0's in the decimal expansion of Pi.at n=6A050202
- Number of asymmetric (identity) trees with n nodes and 8 leaves.at n=5A055339
- Sum of digits = 8 times number of digits.at n=27A061425
- Semiprimes p1*p2 such that p2>p1 and p2 mod p1 = 7.at n=43A064905
- Diagonal sums of number array A082043.at n=12A082045
- Numbers n such that n+2*prime(n) is a perfect square.at n=27A104776
- Odd numbers n for which 13 is the smallest i (>= 1) with Jacobi symbol J(i,n) getting either a value 0 or -1.at n=27A112076
- Numerator of Bernoulli(n, 4/11).at n=4A159246
- Number of partitions of n such that the number of parts is divisible by the greatest part. Also number of partitions of n such that the greatest part is divisible by the number of parts.at n=45A168659
- Triangle T(n,k) read by rows: left edge is 0, 1, 2, ... (cf. A001477); otherwise each entry is sum of entry to left and entries immediately above it to left and right, with 1 for the missing right term at right edge.at n=49A224791
- a(n) = Hermite(n,1/5)*5^n/2^round(n/2)*(-1)^floor(n/2).at n=5A237987
- Numbers k where there are 8 primes between 10*k and 10*k + 30.at n=1A282059
- Partial sums of A299268.at n=17A299269
- Where the zeros in A123066 occur.at n=27A321962
- Sum of largest emergent parts of the partitions of n.at n=28A330242