Properties of the Number 80900

Eighty Thousand Nine Hundred

Basics

Value: 80899 → 80900 → 80901

Parity: even

Prime: No

Previous Prime: 80897

Next Prime: 80909

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 5 ² × 809

Divisors: 1, 2, 4, 5, 10, 20, 25, 50, 100, 809

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10011110000000100

Octal: 236004

Duodecimal: 3A998

Hexadecimal: 13c04

Square: 6544810000

Square Root: 284.42925306655786

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

Expansion of 1/(1-x³-x⁴-x⁵-x⁶-x⁷). A17820

a(1)=1; for n>1, a(n)=a(n-1)-2 if n is already in the sequence, a(n)=a(n-1)+5 otherwise. A80900

Number of nX4 0..1 arrays with every element unequal to 1, 2, 4 or 5 king-move adjacent elements, with upper left element zero. A304054