Properties of the Number 55131

Fifty-Five Thousand One Hundred Thirty-One

Basics

Value: 55130 → 55131 → 55132

Parity: odd

Prime: No

Previous Prime: 55127

Next Prime: 55147

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 17 × 23 × 47

Divisors: 1, 3, 17, 23, 47, 51, 69, 141, 391, 799

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1101011101011011

Octal: 153533

Duodecimal: 27AA3

Hexadecimal: d75b

Square: 3039427161

Square Root: 234.7999148211089

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

T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with no 2X2 subblock having the maximum of its diagonal elements greater than the absolute difference of its antidiagonal elements. A251167

Number of degeneracies on the sets of ordinary trees with n vertices according to a topological index. A121223

Numbers n such that n and n+-1 have 4 distinct prime factors. A168628

Number of (n+1)X(1+1) 0..3 arrays with no 2X2 subblock having the maximum of its diagonal elements greater than the absolute difference of its antidiagonal elements. A251160

Number of (n+1)X(5+1) 0..3 arrays with no 2X2 subblock having the maximum of its diagonal elements greater than the absolute difference of its antidiagonal elements. A251164

Centered pentagonal numbers which are the products of four distinct primes. A382451

Those composite s for which A055095[s] = 2. A55131