Properties of the Number 97991

Ninety-Seven Thousand Nine Hundred Ninety-One

Basics

Value: 97990 → 97991 → 97992

Parity: odd

Prime: No

Previous Prime: 97987

Next Prime: 98009

Digit Sum: 35

Digital Root: 8

Palindrome: No

Factorization: 29 × 31 × 109

Divisors: 1, 29, 31, 109, 899, 3161, 3379, 97991

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10111111011000111

Octal: 277307

Duodecimal: 4885B

Hexadecimal: 17ec7

Square: 9602236081

Square Root: 313.035141797211

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

Number of nX6 0..1 arrays with every element equal to 1, 2, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A300767

T(n,k)=Number of nXk 0..1 arrays with every element equal to 1, 2, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A300769

A puzzle: reverse digits of n² + 10. A97991