Properties of the Number 80864

Eighty Thousand Eight Hundred Sixty-Four

Basics

Value: 80863 → 80864 → 80865

Parity: even

Prime: No

Previous Prime: 80863

Next Prime: 80897

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 ⁵ × 7 × 19 ²

Divisors: 1, 2, 4, 7, 8, 14, 16, 19, 28, 32

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10011101111100000

Octal: 235740

Duodecimal: 3A968

Hexadecimal: 13be0

Square: 6538986496

Square Root: 284.3659613948195

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 derangements of n where minimal cycle size is at least 3. A38205

Gaps of 8 in sequence A038593 (upper terms). A38656

a(n) = the smallest positive integer that produces a product that contains the digit 2 when multiplied by 2 at most n times, and where a further multiplication by 2 produces a number that does not contain the digit 2. Set a(n) = -1 if no such number exists. A381183

Triangle read by rows: T(n,k) is the number of derangements of {1,2,...,n} having k cycles of length 2 (0 <= k <= floor(n/2)). A162974

Number of (w,x,y,z) with all terms in {1,...,n} and |x-y|=|y-z|. A212679

Triangle read by rows: T(n,k) is the number of permutations in S_n for which all cycles are length k or greater. A333726

Triangle read by rows: T(n,k) is the number of permutations of length n that have k same elements at the same positions with its inverse permutation for 0 <= k <= n. A344901

Number of integer points (x, y, z, w) at distance <= 1/2 from 3-sphere of radius n. A350740

Triangle read by rows: T(n,k) is the number of derangements in S_n with no k-cycles. 1 <= k <= n. A378495

Decimal expansion of exp(3/2). A67736