Properties of the Number 65999

Sixty-Five Thousand Nine Hundred Ninety-Nine

Basics

Value: 65998 → 65999 → 66000

Parity: odd

Prime: No

Previous Prime: 65993

Next Prime: 66029

Digit Sum: 38

Digital Root: 2

Palindrome: No

Factorization: 31 × 2129

Divisors: 1, 31, 2129, 65999

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000000111001111

Octal: 200717

Duodecimal: 3223B

Hexadecimal: 101cf

Square: 4355868001

Square Root: 256.90270531857

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

Sum of digits of 9ⁿ. A65999

Multiplicative order of n in nim-multiplication. A212200

Number of (n+1)X(5+1) 0..2 arrays with every 2X2 subblock summing to 1 2 3 4 5 6 or 7. A251370