Properties of the Number -15386

Fifteen Thousand Three Hundred Eighty-Six

Basics

Value: -15387 → -15386 → -15385

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 7 ² × 157

Divisors: 1, 2, 7, 14, 49, 98, 157, 314, 1099, 2198

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11110000011010

Octal: -36032

Duodecimal: -8AA2

Hexadecimal: -3c1a

Square: 236728996

Square Root: 124.04031602668546

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) = ∑_d∣n (-1)^d-1*d³. A138503

Triangle of numbers related to triangle A092083; generalization of Stirling numbers of second kind A008277, Lah-numbers A008297, ... A92082

a(n) = ∑_{d >= 1, d divides n} (-1)^n-d*d³. A8457

a(n) = ∑_{d divides n} (-1)^n/d+1*d³. A78307

Number of n X 3 binary matrices under row and column permutations and column complementations. A6381

Even numbers k such that 6k+1, 12k+1, 18k+1, 36k+1 and 72k+1 are all primes. A206349

Maximal length of rook tour on an n X n+1 board. A152132

Total sum of nonprime parts in all partitions of n. A194545

Numbers m such that 6m+1, 12m+1, 18m+1, 36m+1 and 72m+1 are all prime. A257035

Maximal length of rook tour on an n X n+3 board. A152134