Properties of the Number 55615

Fifty-Five Thousand Six Hundred Fifteen

Basics

Value: 55614 → 55615 → 55616

Parity: odd

Prime: No

Previous Prime: 55609

Next Prime: 55619

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 5 × 7 ² × 227

Divisors: 1, 5, 7, 35, 49, 227, 245, 1135, 1589, 7945

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1101100100111111

Octal: 154477

Duodecimal: 28227

Hexadecimal: d93f

Square: 3093028225

Square Root: 235.82832739092223

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

Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 35 ones. A31803

Number of length n+5 0..4 arrays with some three disjoint pairs in each consecutive six terms having the same sum. A248485

L.g.f.: log(∑_k>=0 k! * x^{k*(k + 1}/2) / ∏_j=1..k (1 - x^j)). A331337

a(n) = n * μ(n), where μ is the Möbius function A008683. A55615