Properties of the Number 99904

Ninety-Nine Thousand Nine Hundred Four

Basics

Value: 99903 → 99904 → 99905

Parity: even

Prime: No

Previous Prime: 99901

Next Prime: 99907

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 2 ⁶ × 7 × 223

Divisors: 1, 2, 4, 7, 8, 14, 16, 28, 32, 56

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 11000011001000000

Octal: 303100

Duodecimal: 49994

Hexadecimal: 18640

Square: 9980809216

Square Root: 316.0759402422146

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(n) is the largest 5-digit number with exactly n divisors, or a(n) = 0 if no such number exists. A182698

Refactorable numbers k such that 2·k + 1 is also a refactorable number. A281294

a(n) = (1/2) * ∑_{k=0..floor(n/3)} 2^k * binomial(2·k+2,2·n-6·k+1). A387552

Numbers n such that σ(n)/τ(n) is a perfect number. A219179

Numerator of sum of all matrix elements of N X N matrix M(i,j) = i³+j³, (i,j = 1..n) divided by n!. A99904

Number of nX4 binary arrays without the pattern 0 0 1 vertically or horizontally. A188758

Number of 4 X n binary arrays without the pattern 0 0 1 antidiagonally or horizontally. A188994

Number of nX4 binary arrays without the pattern 0 0 1 vertically or antidiagonally. A189191

Square array read by antidiagonals, where the n-th row is the coordination sequence of a certain tiling with an n-dimensional analog of the X pentomino (or Greek cross), n >= 1. A383338