Properties of the Number -18171

Eighteen Thousand One Hundred Seventy-One

Basics

Value: -18172 → -18171 → -18170

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 673

Divisors: 1, 3, 9, 27, 673, 2019, 6057, 18171

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100011011111011

Octal: -43373

Duodecimal: -A623

Hexadecimal: -46fb

Square: 330185241

Square Root: 134.79985163196582

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) = 25·n² - 2·n. A154376

Numbers b that are the first of m³ consecutive cubes whose sum is a cube c³, where m³ is not divisible by 3 (A118719). A253778

Triangle read by rows. Number T(n, k) of partitions of the multiset [1, 1, 1, 1, 2, 2, 2, 2, ..., n, n, n, n] into k nonempty subsets, for 4 <= k <= 4n. A360038

Denominators of continued fraction convergents to sqrt(95). A41171

Odd numbers k such that A173557(k) = A173557(σ(k)), where A173557(n) is multiplicative with a(p^e) = p-1 and σ is the sum of divisors function. A387159

Records in A171797 starting from a(1). A305396

Character of extremal vertex operator algebra of rank 27/2. A28535

Sum of a(n) terms of 1/k^3/4 first exceeds n. A56179