Properties of the Number 86144

Eighty-Six Thousand One Hundred Forty-Four

Basics

Value: 86143 → 86144 → 86145

Parity: even

Prime: No

Previous Prime: 86143

Next Prime: 86161

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ⁷ × 673

Divisors: 1, 2, 4, 8, 16, 32, 64, 128, 673, 1346

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101000010000000

Octal: 250200

Duodecimal: 41A28

Hexadecimal: 15080

Square: 7420788736

Square Root: 293.50298124550625

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 set partitions of {1, ..., n} with no block containing three distinct cyclically successive vertices. A323949

Regular triangle read by rows where T(n, k) is the number of set partitions of {1, ..., n} with no block containing k cyclically successive vertices, n >= 1, 2 <= k <= n + 1. A323955

a(n) = 2·A071640(n) - n. A86144

Number of ways to reciprocally link elements of an n X 5 array either to themselves or to exactly one king-move neighbor. A220641