Properties of the Number 66747

Sixty-Six Thousand Seven Hundred Forty-Seven

Basics

Value: 66746 → 66747 → 66748

Parity: odd

Prime: No

Previous Prime: 66739

Next Prime: 66749

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 19 × 1171

Divisors: 1, 3, 19, 57, 1171, 3513, 22249, 66747

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10000010010111011

Octal: 202273

Duodecimal: 32763

Hexadecimal: 104bb

Square: 4455162009

Square Root: 258.35440774254266

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

a(n) is the smallest natural number m such that 2^{2^k} + m is prime for k=0,1,...,n. A129613

Least numbers k for each base b >= 2 such that N = b^2ⁿ + k is prime for 7 consecutive values from n = 0 to n = 6. A225560

Number of base 13 n-digit numbers with adjacent digits differing by one or less. A126367

Decimal expansion of the "binary" Copeland-Erdős constant 0.734121515408286120606...: concatenate primes in base two. A66747