Properties of the Number 89908

Eighty-Nine Thousand Nine Hundred Eight

Basics

Value: 89907 → 89908 → 89909

Parity: even

Prime: No

Previous Prime: 89899

Next Prime: 89909

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 7 × 13 ² × 19

Divisors: 1, 2, 4, 7, 13, 14, 19, 26, 28, 38

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 10101111100110100

Octal: 257464

Duodecimal: 44044

Hexadecimal: 15f34

Square: 8083448464

Square Root: 299.8466274614407

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

T(n,k)=Half the number of (n+1)X(k+1) binary arrays with equal numbers of majority one 2X2 subblocks and majority zero 2X2 subblocks. A184467

Half the number of (n+1)X7 binary arrays with equal numbers of majority one 2X2 subblocks and majority zero 2X2 subblocks. A184464

Half the number of (n+1) X 3 binary arrays with equal numbers of majority one 2 X 2 subblocks and majority zero 2 X 2 subblocks. A184460

a(n) = (n+1)²*(n+2)*(5·n² + 15·n + 12)/24. A108676

Sum of digits of numbers between 0 and (7/9)*(10ⁿ-1). A89908