ℕ atory
Play Now

Properties of the Number 55860

Fifty-Five Thousand Eight Hundred Sixty

Basics

Value: 55859 → 55860 → 55861

Parity: even

Prime: No

Previous Prime: 55849

Next Prime: 55871

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 2 × 3 × 5 × 7 2 × 19

Divisors: 1, 2, 3, 4, 5, 6, 7, 10, 12, 14

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1101101000110100

Octal: 155064

Duodecimal: 283B0

Hexadecimal: da34

Square: 3120339600

Square Root: 236.34720222587785

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Harmonic or Ore numbers: numbers k such that the harmonic mean of the divisors of k is an integer. A1599
Numbers whose divisors' harmonic and arithmetic means are both integers. A7340
Numbers k such that the set of prime divisors of k is equal to the set of prime divisors of σ(k). A27598
Number of reversible strings with n-1 beads of 2 colors. 4 beads are black. String is not palindromic. A32091
The binary encoding (as a rooted planar tree) of each rooted planar binary tree. See A057123 for illustration. A57122
Numbers k such that 2k+1, 4k+1, 6k+1 and 8k+1 are primes. A124409
Triangle T(n,k) read by rows: coefficients of polynomials Pn(t) defined in Formula section. A286785
Number of 3-cycles in the n X n rook graph. A288961
Harmonic numbers m from A001599 such that m*(m-τ(m))/σ(m) is not an integer, where k-τ(k) = the number of nondivisors of k (A049820), τ(k) = the number of divisors of k (A000005) and σ(k) = the sum of the divisors of k (A000203). A325022
Numbers k such that (k, σ(k)) lies on a circle with integral radius centered at the origin, i.e., k2 + σ(k)2 is a square. A66764