Properties of the Number -249431

Two Hundred Forty-Nine Thousand Four Hundred Thirty-One

Basics

Value: -249432 → -249431 → -249430

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 7 × 13 × 2741

Divisors: 1, 7, 13, 91, 2741, 19187, 35633, 249431

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -111100111001010111

Octal: -747127

Duodecimal: -10041B

Hexadecimal: -3ce57

Square: 62215823761

Square Root: 499.43067587003503

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 set partitions of [n] into exactly three blocks where sizes of distinct blocks are coprime. A280881

a(n) = (a(n-1) * a(n-5) + a(n-2) * a(n-4) + a(n-3)²) / a(n-6), a(0) = a(1) = a(2) = a(3) = 1, a(4) = a(5) = 2. A227999