Properties of the Number -221521

Two Hundred Twenty-One Thousand Five Hundred Twenty-One

Basics

Value: -221522 → -221521 → -221520

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 19 × 89 × 131

Divisors: 1, 19, 89, 131, 1691, 2489, 11659, 221521

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: -110110000101010001

Octal: -660521

Duodecimal: -A8241

Hexadecimal: -36151

Square: 49071553441

Square Root: 470.66017464833374

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 polyominoes consisting of 6 regular unit n-gons. A103472

Strong pseudoprimes to base 88. A20314