Properties of the Number 7976

Seven Thousand Nine Hundred Seventy-Six

Basics

Value: 7975 → 7976 → 7977

Parity: even

Prime: No

Previous Prime: 7963

Next Prime: 7993

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 ³ × 997

Divisors: 1, 2, 4, 8, 997, 1994, 3988, 7976

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111100101000

Octal: 17450

Duodecimal: 4748

Hexadecimal: 1f28

Square: 63616576

Square Root: 89.30845424706443

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 partitions of n such that the least part occurs at least twice. A117989

Number of nonempty pairwise coprime subsets of {1,...,n}, where a single number is not considered to be pairwise coprime unless it is equal to 1. A320426

T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 6 and no adjacent elements equal. A233733

Triangle, read by rows, equal to the matrix square of A113983. A113988

Numbers k such that 6k+1, 12k+1, 18k+1 and 36k+1 are all primes. A206024

Number of partitions of n such that m(greatest part) < m(1), where m = multiplicity. A240076

Let (u1,u2) be successive untouchable numbers such that φ(u1) = φ(u2); sequence gives values of u2. A48190

Column 3 of triangle A113988, which is the matrix square of A113983: a(n) = [A113983²](n+3,3). A113992

a(n) = n·Fibonacci(n) * ∑_d∣n 1/(d·Fibonacci(d)). A203319

Number of partitions of n with equal number of parts congruent to each of 0, 1, 2 and 3 (mod 4). A46770