Properties of the Number -199879

One Hundred Ninety-Nine Thousand Eight Hundred Seventy-Nine

Basics

Value: -199880 → -199879 → -199878

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 43

Digital Root: 7

Palindrome: No

Factorization: 101 × 1979

Divisors: 1, 101, 1979, 199879

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110000110011000111

Octal: -606307

Duodecimal: -97807

Hexadecimal: -30cc7

Square: 39951614641

Square Root: 447.07829291970774

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) = 4·a(n-1) - 2·a(n-2) + a(n-3) - 4·a(n-4) + 2·a(n-5) for n >= 7, where a(1) = 1, a(2) = 2, a(3) = 4, a(4) = 12, a(5) = 38, a(6) = 127. A341240

Number of unlabeled heptagonal 2-trees with n heptagons. A94651

Numbers n such that A160691(n)=12. A158963