Properties of the Number -221581

Two Hundred Twenty-One Thousand Five Hundred Eighty-One

Basics

Value: -221582 → -221581 → -221580

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 221581

Divisors: 1, 221581

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110110000110001101

Octal: -660615

Duodecimal: -A8291

Hexadecimal: -3618d

Square: 49098139561

Square Root: 470.7239105887866

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 n X 3 binary arrays with row sums nondecreasing and columns lexicographically nondecreasing. A267240

Number of n X n binary arrays with rows and columns, considered as graycode numbers, in nondecreasing order, and an odd number of ones in each row or column. A162077