Properties of the Number 72137

Seventy-Two Thousand One Hundred Thirty-Seven

Basics

Value: 72136 → 72137 → 72138

Parity: odd

Prime: No

Previous Prime: 72109

Next Prime: 72139

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 13 × 31 × 179

Divisors: 1, 13, 31, 179, 403, 2327, 5549, 72137

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001100111001001

Octal: 214711

Duodecimal: 358B5

Hexadecimal: 119c9

Square: 5203746769

Square Root: 268.58332040541904

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

Irregular array T(n,k) of the numbers of non-extendable (complete) non-self-adjacent simple paths incorporating each of a minimal subset of nodes within a square lattice bounded by rectangles with nodal dimensions n and 4, n >= 2. A214510

Cubes written in base 8. A4638

a(0)=1; a(1)=1; a(n)= a(n-1) + floor( sqrt(a(n-1)*a(n-2))+ sqrt(a(n-3)*a(n-4))+ ... ). A43327

Irregular array T(n,k) of the numbers of non-extendable (complete) non-self-adjacent simple paths incorporating each of a minimal subset of nodes within a square lattice bounded by rectangles with nodal dimensions n and 9, n >= 2. A214608

Length of the preperiodic part of the 'Reverse and Subtract' trajectory of n. A72137