Properties of the Number -68729

Sixty-Eight Thousand Seven Hundred Twenty-Nine

Basics

Value: -68730 → -68729 → -68728

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 68729

Divisors: 1, 68729

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

375 Try Today's Challenge

Representations

Binary: -10000110001111001

Octal: -206171

Duodecimal: -33935

Hexadecimal: -10c79

Square: 4723675441

Square Root: 262.16216355530787

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

a(1)=3, b(n) = ∏_k=1..n a(k), a(n+1) is the largest prime factor of (b(n)-1). A5266

a(1) = 2, a(2) = 3; for n >= 2, a(n+1) is largest prime factor of (∏_k=1..n a(k)) - 1. A84599

a(n) = floor(exp(8/15)*n!). A30911