Properties of the Number -7641

Six Hundred Forty-One

Basics

Value: -7642 → -7641 → -7640

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 283

Divisors: 1, 3, 9, 27, 283, 849, 2547, 7641

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1110111011001

Octal: -16731

Duodecimal: -4509

Hexadecimal: -1dd9

Square: 58384881

Square Root: 87.41281370600079

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

Numbers m such that there are precisely 13 groups of order m. A292896

Number of integer partitions of n whose maximal anti-runs have distinct minima. A375134

Numbers k such that 5^k - 4 is prime. A59613

a(n) = numerator of (ζ(0,2,1/3) - ζ(0,2,n+1/3)), where ζ is the Hurwitz ζ function. A173982

Positive integers of the form (2·m²+1)/11. A179088

Numbers that are the sum of five third powers in exactly eight ways. A345184

n has digits in descending order and n=a+b where a has the digits of n in another order and b has the digits of n in ascending order (perhaps with leading zeros). A55161

Numbers formed by the rightmost decimal digits of n^nⁿ that are the same as those of n^{n^(nⁿ}). A369624

Number of 2 X 2 matrices with all terms in {0,1,...,n} and (sum of terms) = determinant. A280588

Numbers that are divisible by the product of their factorial base digits (A208575). A286590