Properties of the Number -7990

Nine Hundred Ninety

Basics

Value: -7991 → -7990 → -7989

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 × 5 × 17 × 47

Divisors: 1, 2, 5, 10, 17, 34, 47, 85, 94, 170

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1111100110110

Octal: -17466

Duodecimal: -475A

Hexadecimal: -1f36

Square: 63840100

Square Root: 89.38679992034618

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 Young tableaux of height <= 5. A49401

Third partial sums of fifth powers (A000584). A101099

Numbers k such that Cyclotomic(k,k) (i.e., the value of k-th cyclotomic polynomial at k) is a prime number. A70519

a(n) = 3·4ⁿ + 10·2ⁿ + 6·3ⁿ + 5ⁿ + 15. A254364

Numbers that are the sum of ten fourth powers in eight or more ways. A345601

Numbers that are the sum of ten fourth powers in nine or more ways. A345602

a(n) = (binomial(2n, n) - 2) mod n³. A246133

Numbers that are the sum of ten fourth powers in ten or more ways. A345603

Numbers that are the sum of ten fourth powers in exactly ten ways. A345862

Expansion of 1/((1-x)*(1+x+x²+2·x³)). A77909