Properties of the Number 7885

Seven Thousand Eight Hundred Eighty-Five

Basics

Value: 7884 → 7885 → 7886

Parity: odd

Prime: No

Previous Prime: 7883

Next Prime: 7901

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 5 × 19 × 83

Divisors: 1, 5, 19, 83, 95, 415, 1577, 7885

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111011001101

Octal: 17315

Duodecimal: 4691

Hexadecimal: 1ecd

Square: 62173225

Square Root: 88.79752248796134

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

Square array A(n,k) = (n!)² [xⁿ] BesselI(0, 2·sqrt(x))^k read by antidiagonals. A287316

G.f.: ∏_{i>=1, j>=1} 1/(1 - x^i·j)^i·j. A280540

a(n) = 6·n² + 3·n + 1. A85473

Composite numbers k that divide 3^k - 2^k - 1, excluding powers of 2, 3 and 7. A127073

Triangle read by rows: T(n,k) is the number of rooted toroidal maps with n edges and k faces and without isthmuses, n >= 2, k = 1..n-1. A343092

Number of partitions of n into decimal palindromes. A91580

The function W₅(2n) (see Borwein et al. reference for definition). A169714

a(n) = n³ + 6·n² + 6·n + 1. A90197

Number of 3 X 3 stochastic matrices under row and column permutations. A52282

Number of partitions of n into decimal repdigit numbers. A88669