Properties of the Number -180999

One Hundred Eighty Thousand Nine Hundred Ninety-Nine

Basics

Value: -181000 → -180999 → -180998

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 36

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 7 × 13 ² × 17

Divisors: 1, 3, 7, 9, 13, 17, 21, 39, 51, 63

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101100001100000111

Octal: -541407

Duodecimal: -888B3

Hexadecimal: -2c307

Square: 32760638001

Square Root: 425.4397724707929

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

Odd n such that 2*φ(n) < n, but there does not exist an even k < n with φ(k) = φ(n). A118700

Number of subsets of 6 integers between 1 and n such that their sum is 1 modulo n. A381290