Properties of the Number 7982

Seven Thousand Nine Hundred Eighty-Two

Basics

Value: 7981 → 7982 → 7983

Parity: even

Prime: No

Previous Prime: 7963

Next Prime: 7993

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 × 13 × 307

Divisors: 1, 2, 13, 26, 307, 614, 3991, 7982

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111100101110

Octal: 17456

Duodecimal: 4752

Hexadecimal: 1f2e

Square: 63712324

Square Root: 89.3420393767682

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

Array read by rows: T(n,k) is the number of directed multigraphs with loops with n arcs, k vertices, and no vertex of degree 0. A136564

Integers i > 1 for which there is no prime p such that i is a solution mod p of x⁴ = 2. A65903

Sum of the first 2n+1 primes. A109723

a(n) = ∑_k=1..n k²*(floor(n/k) - 1). A279847

Bessel function J₀(n) is a monotonically decreasing positive sequence. A46960

Bessel function |J₀(n)| is a monotonically decreasing positive sequence. A46962

Sum of primes < n². A139562

σ(2·n²) - σ(n²). A195585

Sum of first prime(n) primes. A22094

Number of orbits of the group of units of Z/(n) acting naturally on the 4-subsets of Z/(n). A63381