Properties of the Number 66481

Sixty-Six Thousand Four Hundred Eighty-One

Basics

Value: 66480 → 66481 → 66482

Parity: odd

Prime: No

Previous Prime: 66467

Next Prime: 66491

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 19 × 3499

Divisors: 1, 19, 3499, 66481

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000001110110001

Octal: 201661

Duodecimal: 32581

Hexadecimal: 103b1

Square: 4419723361

Square Root: 257.83909711290875

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 binary strings of length n with no substrings equal to 0000 0011 or 0101. A164426

Numbers whose base-3 representation has exactly 11 runs. A43591

Numbers n such that number of runs in the base 3 representation of n is congruent to 1 mod 10. A43816

Largest anti-divisor of n. A66481