Properties of the Number -15381

Fifteen Thousand Three Hundred Eighty-One

Basics

Value: -15382 → -15381 → -15380

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 1709

Divisors: 1, 3, 9, 1709, 5127, 15381

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11110000010101

Octal: -36025

Duodecimal: -8A99

Hexadecimal: -3c15

Square: 236575161

Square Root: 124.02015965156633

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

Number of labeled simple graphs covering n vertices with at least one endpoint/leaf. A327227

(n-1)-st elementary symmetric function of {1,3,7,15,31,63,...-1+2ⁿ}. A203011

Triangle read by rows where T(n,k) is the number of labeled simple graphs with n vertices and minimum vertex-degree k. A327366

Odd composites k such that σ(k) has the same powerful part as k, where σ is the sum of divisors function. A386425

Numbers k such that prime(k+3)-(k+3)*τ(k+3) = prime(k-3)-(k-3)*τ(k-3) where τ(k) = A000005(k) is the number of divisors of k. A67355

Number of graphs on n labeled nodes with maximal degree exactly 4. A136286

Terms k of A228058 such that gcd(k - A048250(k), A162296(k) - k) = A162296(k) - k. A325376

Consecutive states of the linear congruential pseudo-random number generator (10924·s+11830) mod (2¹⁵+1) when started at s=1. A384150

Numbers n for which the numbers 6n+1, 3n+2, 6n+7 are all odd composite squarefree numbers, but none are semiprimes. A263510

Numbers k in A228058 such that also A001065(k) is in A228058. A325380