Properties of the Number 66789

Sixty-Six Thousand Seven Hundred Eighty-Nine

Basics

Value: 66788 → 66789 → 66790

Parity: odd

Prime: No

Previous Prime: 66763

Next Prime: 66791

Digit Sum: 36

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 41 × 181

Divisors: 1, 3, 9, 41, 123, 181, 369, 543, 1629, 7421

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000010011100101

Octal: 202345

Duodecimal: 32799

Hexadecimal: 104e5

Square: 4460770521

Square Root: 258.43567865138124

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 4 X 4 stochastic matrices under row and column permutations. A52280

Numbers k that divide the sum of the digits of 2^k * k!. A108861

a(n) = binomial(n³, n²). A66789