Properties of the Number -311655

Three Hundred Eleven Thousand Six Hundred Fifty-Five

Basics

Value: -311656 → -311655 → -311654

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 79 × 263

Divisors: 1, 3, 5, 15, 79, 237, 263, 395, 789, 1185

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: Yes

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1001100000101100111

Octal: -1140547

Duodecimal: -130433

Hexadecimal: -4c167

Square: 97128839025

Square Root: 558.2606917919262

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

Expansion of ∑_k>0 x^3·k/(1 - (k·x)^k)³. A363652

a(n) = smallest triangular number having no digit in common with the previous term, with a(1) = 1. A68818