Properties of the Number 70681

Seventy Thousand Six Hundred Eighty-One

Basics

Value: 70680 → 70681 → 70682

Parity: odd

Prime: No

Previous Prime: 70667

Next Prime: 70687

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 13 × 5437

Divisors: 1, 13, 5437, 70681

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10001010000011001

Octal: 212031

Duodecimal: 34AA1

Hexadecimal: 11419

Square: 4995803761

Square Root: 265.8589851782332

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

Irregular triangle: p(k, x) = 2·x*p(k-1, x) + (1 - x²)*p(k-2, x) for even k, p(k, x) = 2*(k-1)*p(k-1, x) - x·p(k-2, x) for odd k. A123242

Smallest m in range 1..φ(2n+1) such that 6^m == 1 mod 2n+1, or 0 if no such number exists. A70681