Properties of the Number -168781

One Hundred Sixty-Eight Thousand Seven Hundred Eighty-One

Basics

Value: -168782 → -168781 → -168780

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 168781

Divisors: 1, 168781

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

375 Try Today's Challenge

Representations

Binary: -101001001101001101

Octal: -511515

Duodecimal: -81811

Hexadecimal: -2934d

Square: 28487025961

Square Root: 410.8296483945627

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 of the form 50n² + 10n + 1. A154428

Primes of the form (4·k + 3)² + (4·k + 2)² where k=0,1,2,3,... A87872

Primes p = x² + y², not of the form z² + 1, such that 2^x² == 2^y² == 1 (mod p). A299103