Properties of the Number -393191

Three Hundred Ninety-Three Thousand One Hundred Ninety-One

Basics

Value: -393192 → -393191 → -393190

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 393191

Divisors: 1, 393191

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

375 Try Today's Challenge

Representations

Binary: -1011111111111100111

Octal: -1377747

Duodecimal: -16B65B

Hexadecimal: -5ffe7

Square: 154599162481

Square Root: 627.0494398370834

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 with repdigit indices (in decimal). A258433

Primes of the form 7n² + 8. A201608

a(1) = 23, a(2) = 71, a(n) = 3·a(n-1) - 2·a(n-2) for n>2. A248877

Primes of the form 3·2^k - 25. A321356