5595
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 24
- Digital Root
- 6
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 8976
- Proper Divisor Sum (Aliquot Sum)
- 3381
- 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
- 2976
- Möbius Function
- -1
- Radical
- 5595
- Omega Function (Ω)
- 3
- Little Omega Function (ω)
- 3
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
- 129
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- 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
- Number of bipartite partitions.at n=14A002766
- Numerators of continued fraction convergents to sqrt(977).at n=4A042890
- Numbers whose base-7 representation contains exactly four 2's.at n=7A043404
- Numbers having three 5's in base 10.at n=27A043511
- Numbers of the form p*q*r where p,q,r are distinct odd palindromic primes (odd terms from A002385).at n=23A046405
- Triangle T(n,k) read by rows giving number of labeled mappings (or functional digraphs) from n points to themselves (endofunctions) with exactly k cycles, k=1..n.at n=17A060281
- Triangle of coefficients of polynomials used for g.f.s of columns of A067304.at n=31A067329
- Sum of terms in n-th row of A077316.at n=14A077318
- Partial sums of primes that are not Chen primes (starting with 1).at n=24A118483
- Number of ways to write n as an ordered sum of 1s, 2s, 3s and 4s such that no 2 precedes any 1 and no 3 precedes any 1 or 2.at n=22A123569
- Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1100-0110-0011 pattern in any orientation.at n=10A146446
- a(n) = 25*n^2 - 2*n.at n=14A154376
- Bisection of toothpick sequence A139250.at n=54A159791
- a(n) = Sum_{j=1..prime(n)-1} floor(j^2/prime(n)).at n=31A165993
- The sums of pairs of adjacent terms are the odd palindromic primes in ascending order.at n=41A181883
- Expansion of e.g.f. 1/( cos(arctanh(x)) - sin(arctanh(x)) ).at n=6A184972
- Number of dominating subsets of the wheel graph W_n.at n=12A213661
- Numbers k such that 25*k+1 is a square.at n=29A219259
- Total sum of parts of multiplicity 7 in all partitions of n.at n=34A222735
- a(n) = Sum_{i=0..n} wt(i)^4, where wt() = A000120().at n=52A231502