Properties of the Number 70991

Seventy Thousand Nine Hundred Ninety-One

Basics

Value: 70990 → 70991 → 70992

Parity: odd

Prime: Yes

Previous Prime: 70981

Next Prime: 70997

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 70991

Divisors: 1, 70991

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001010101001111

Octal: 212517

Duodecimal: 350BB

Hexadecimal: 1154f

Square: 5039722081

Square Root: 266.4413631551978

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 series-reduced achiral free pure multifunctions (with empty expressions allowed) with one atom and n positions. A317884

Primes p such that q² - p² + 1 is the square of a composite number where p and q are consecutive primes. A316934

Numbers n such that the trajectory of n under the `3x+1' map reaches n - 1. A70991

Expansion of x²*(1-x)*(x²+x+1)*(x⁶+x³+1)/((2·x-1)*(2·x⁹-x⁶+x³-1)). A111662