Properties of the Number 90638

Ninety Thousand Six Hundred Thirty-Eight

Basics

Value: 90637 → 90638 → 90639

Parity: even

Prime: No

Previous Prime: 90631

Next Prime: 90641

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 × 45319

Divisors: 1, 2, 45319, 90638

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10110001000001110

Octal: 261016

Duodecimal: 44552

Hexadecimal: 1620e

Square: 8215247044

Square Root: 301.0614555202974

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

Number of (n+2)X(5+2) 0..3 arrays with every 3X3 subblock row and column sum equal to 2 3 4 6 or 7 and every 3X3 diagonal and antidiagonal sum not equal to 2 3 4 6 or 7. A252164

Number of (n+2)X(n+2) 0..3 arrays with every 3X3 subblock row and column sum equal to 2 3 4 6 or 7 and every 3X3 diagonal and antidiagonal sum not equal to 2 3 4 6 or 7. A252159

T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock row and column sum equal to 2 3 4 6 or 7 and every 3X3 diagonal and antidiagonal sum not equal to 2 3 4 6 or 7. A252167

Duplicate of A073869. A90638