Properties of the Number -268182

Two Hundred Sixty-Eight Thousand One Hundred Eighty-Two

Basics

Value: -268183 → -268182 → -268181

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 47 × 317

Divisors: 1, 2, 3, 6, 9, 18, 47, 94, 141, 282

Polygonal

Triangular: No

Square: No

Pentagonal: Yes

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -1000001011110010110

Octal: -1013626

Duodecimal: -10B246

Hexadecimal: -41796

Square: 71921585124

Square Root: 517.8629162239753

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

Pentagonal numbers > 0 which are not the difference of two larger pentagonal numbers. A136113

a(n) = 2·a(n-1) - a(n-2) + 2·a(n-4) - a(n-5) + a(n-7) - a(n-8) - a(n-10) for n >= 10, where a(0) = 2, a(1) = 4, a(2) = 7, a(3) = 11, a(4) = 18, a(5) = 31, a(6) = 52, a(7) = 89, a(9) = 151, a(9) = 257. A289004

Pentagonal numbers > 0 which are not the difference of two other pentagonal numbers > 0. A135769