Properties of the Number 55645

Fifty-Five Thousand Six Hundred Forty-Five

Basics

Value: 55644 → 55645 → 55646

Parity: odd

Prime: No

Previous Prime: 55639

Next Prime: 55661

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 5 × 31 × 359

Divisors: 1, 5, 31, 155, 359, 1795, 11129, 55645

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1101100101011101

Octal: 154535

Duodecimal: 28251

Hexadecimal: d95d

Square: 3096366025

Square Root: 235.89192440607204

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 n such that φ(n + φ(n)) = σ(n). A74874

Number of 6Xn 0..1 arrays with every element equal to 0, 1 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A302168

Coefficients of polynomials g_b(x) that arise in the generating function for rooted maps (A053979). A305873

Numbers k such that (86·10^k - 311)/9 is prime. A293911

T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 1 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A302163

Triangle, read by rows, such that the binomial transform of the n-th row lists the m-dimensional partitions of n, for n>=1 and m>=0. A96806

Integers in base 16 with each hexadecimal digit represented by 2 decimal digits. A55645