Properties of the Number -91381

Ninety-One Thousand Three Hundred Eighty-One

Basics

Value: -91382 → -91381 → -91380

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 91381

Divisors: 1, 91381

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

7989 Try Today's Challenge

Representations

Binary: -10110010011110101

Octal: -262365

Duodecimal: -44A71

Hexadecimal: -164f5

Square: 8350487161

Square Root: 302.29290431632694

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

Primes which are triangular numbers plus 3. A159047

Minimum number of identical bricks of length 1 which, when stacked without mortar in the naive way, form a stack of length >=n. A65071

Primes p such that p+12, (p+1)/2, and (p+13)/2 are also prime. A283869

Primes of the form k² + prime(k) + 1. A63461

a(n) = 1 if a(n-1) is prime, else a(n) = a(n-2)+a(n-3); starting with a(0) = 0, a(1) = a(2) = 1. A142884

Primes in A284798. A372770