Properties of the Number 66750

Sixty-Six Thousand Seven Hundred Fifty

Basics

Value: 66749 → 66750 → 66751

Parity: even

Prime: No

Previous Prime: 66749

Next Prime: 66751

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 5 ³ × 89

Divisors: 1, 2, 3, 5, 6, 10, 15, 25, 30, 50

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10000010010111110

Octal: 202276

Duodecimal: 32766

Hexadecimal: 104be

Square: 4455562500

Square Root: 258.36021365527625

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

Matrix inverse of triangle A121335, where A121335(n,k) = C( n*(n+1)/2 + n-k + 1, n-k) for n>=k>=0. A121440

Numbers k such that k | 6^k + 5^k + 4^k + 3^k + 2^k. A57256

Greatest common divisor of n and its digit sum. A66750

G.f. A(x) satisfies: 0 = [xⁿ] (1+x)⁽ⁿ⁺²*(n+3)/2) / A(x) for n>0. A304187