Properties of the Number -171945

One Hundred Seventy-One Thousand Nine Hundred Forty-Five

Basics

Value: -171946 → -171945 → -171944

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 5 × 3821

Divisors: 1, 3, 5, 9, 15, 45, 3821, 11463, 19105, 34389

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101001111110101001

Octal: -517651

Duodecimal: -83609

Hexadecimal: -29fa9

Square: 29565083025

Square Root: 414.6625133768424

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

a(n) = a(n-1) + ∑_k=0..n-4 a(k)*a(n-4-k), a(0) = 1. Generalized Catalan Numbers. A23426

Numbers k such that σ(k) and σ(k+1) are nontrivial powers (A065496). A65522