Properties of the Number -198681

One Hundred Ninety-Eight Thousand Six Hundred Eighty-One

Basics

Value: -198682 → -198681 → -198680

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 3 × 7 × 9461

Divisors: 1, 3, 7, 21, 9461, 28383, 66227, 198681

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -110000100000011001

Octal: -604031

Duodecimal: -96B89

Hexadecimal: -30819

Square: 39474139761

Square Root: 445.7364692281752

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) is the smallest odd number that makes a(n)*2^N(n)-1 prime, where N(n) is the n-th Mersenne number that makes 2^N(n)-1 prime. A135434

Number of 5-tuples of different integers from [ 2,n ] with no common factors among triples. A15649