Properties of the Number 7994

Seven Thousand Nine Hundred Ninety-Four

Basics

Value: 7993 → 7994 → 7995

Parity: even

Prime: No

Previous Prime: 7993

Next Prime: 8009

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 × 7 × 571

Divisors: 1, 2, 7, 14, 571, 1142, 3997, 7994

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111100111010

Octal: 17472

Duodecimal: 4762

Hexadecimal: 1f3a

Square: 63904036

Square Root: 89.40917178902845

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 reduced words of length n in the Weyl group D₁₄. A162301

Numbers n such that p(5n) is prime, where p(n) is the number of partitions of n. A114166

Number of partitions of n such that 2*(greatest part) < (number of parts). A237751

a(n) = [xⁿ] G(x)^2ⁿ/2ⁿ where G(x) satisfies: [xⁿ⁺¹] G(x)^2ⁿ = [xⁿ] G(x)^2ⁿ for n>=0 and G(2x) is the g.f. of A134084. A134088

a(n) = n*(21·n-17)/2. A226491

a(n) = sum of 2^k-1 such that floor(n/prime(k)) is odd. A371906

Numbers k for which the sums of prime factors (ignoring multiplicity) of σ(k) and φ(k) are equal but the sets of prime factors of σ and φ are different. A81378

Triangle read by rows: T(n,k), 0 <= k <= n, gives the coefficients of the Charlier polynomials (with parameter a=1), ordered by rising powers. A137338

Numbers n such that n⁵ and a cube are between consecutive squares. A173341

Number of 2 X 2 matrices having all terms in {1,...,n} and determinant >= n. A211061