Properties of the Number 69981

Sixty-Nine Thousand Nine Hundred Eighty-One

Basics

Value: 69980 → 69981 → 69982

Parity: odd

Prime: No

Previous Prime: 69959

Next Prime: 69991

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 3 × 23327

Divisors: 1, 3, 23327, 69981

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001000101011101

Octal: 210535

Duodecimal: 345B9

Hexadecimal: 1115d

Square: 4897340361

Square Root: 264.5392220446715

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

If x² + 2·y² is prime for all positive integers·and y with m = x·y then m is in the sequence. A287799

Hermite's problem: number of positive integral solutions to x + y + z = n subject to x <= y + z, y <= z + x and z <= x + y. A69981