Properties of the Number 78813

Seventy-Eight Thousand Eight Hundred Thirteen

Basics

Value: 78812 → 78813 → 78814

Parity: odd

Prime: No

Previous Prime: 78809

Next Prime: 78823

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ⁴ × 7 × 139

Divisors: 1, 3, 7, 9, 21, 27, 63, 81, 139, 189

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 10011001111011101

Octal: 231735

Duodecimal: 39739

Hexadecimal: 133dd

Square: 6211488969

Square Root: 280.73653128868

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

Triangle T(n,k) of number of digraphs with a quasi-source on n unlabeled nodes and with k arcs, k = 0..n*(n-1). A57279

Numerators of continued fraction convergents to sqrt(730). A42404

Irregular triangular array read by rows: T(n,k) is the number of non-isomorphic unlabeled weakly connected digraphs on n nodes and with k arcs. A283753

Smallest prime factor of googol - n that exceeds 13, or 1 if googol - n is 13-smooth. A78813