Properties of the Number 99813

Ninety-Nine Thousand Eight Hundred Thirteen

Basics

Value: 99812 → 99813 → 99814

Parity: odd

Prime: No

Previous Prime: 99809

Next Prime: 99817

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 7 ³ × 97

Divisors: 1, 3, 7, 21, 49, 97, 147, 291, 343, 679

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000010111100101

Octal: 302745

Duodecimal: 49919

Hexadecimal: 185e5

Square: 9962634969

Square Root: 315.9319546991092

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

Numbers n such that σ(n)/φ(n) = 25/9, where σ = A000203, φ = A000010. A165630

Bisection of A007318. A99813