Properties of the Number -181780

One Hundred Eighty-One Thousand Seven Hundred Eighty

Basics

Value: -181781 → -181780 → -181779

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 5 × 61 × 149

Divisors: 1, 2, 4, 5, 10, 20, 61, 122, 149, 244

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101100011000010100

Octal: -543024

Duodecimal: -89244

Hexadecimal: -2c614

Square: 33043968400

Square Root: 426.35665821000146

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

Doubly heptagonal pyramidal numbers. A329756

Trajectory of 1 under map n->39n+1 if n odd, n->n/2 if n even. A33975