Properties of the Number -66381

Sixty-Six Thousand Three Hundred Eighty-One

Basics

Value: -66382 → -66381 → -66380

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 7 × 29 × 109

Divisors: 1, 3, 7, 21, 29, 87, 109, 203, 327, 609

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10000001101001101

Octal: -201515

Duodecimal: -324B9

Hexadecimal: -1034d

Square: 4406437161

Square Root: 257.64510474682027

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

The sum of the next n terms of A114103. A114105

On a spirally numbered square grid, with labels starting at 1, this is the number of steps that an (n,n+1) leaper makes before getting trapped, or -1 if it never gets trapped. A343178

Numbers k such that there are 10 digits in k² and for each factor f of 10 (1, 2, 5) the sum of digit groupings of size f is a square. A153748