Properties of the Number -215161

Two Hundred Fifteen Thousand One Hundred Sixty-One

Basics

Value: -215162 → -215161 → -215160

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 215161

Divisors: 1, 215161

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110100100001111001

Octal: -644171

Duodecimal: -A4621

Hexadecimal: -34879

Square: 46294255921

Square Root: 463.854503050256

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

Poincaré series for invariant polynomial functions on the space of binary forms of degree 13. A293938

Primes with 26 as smallest positive primitive root. A61731

G.f.: ∑_k>=0 x^k*(k+1/2) * ∏_j=1..k 1/(1 - x^j)⁴. A376710