Properties of the Number 64080

Sixty-Four Thousand Eighty

Basics

Value: 64079 → 64080 → 64081

Parity: even

Prime: No

Previous Prime: 64067

Next Prime: 64081

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ⁴ × 3 ² × 5 × 89

Divisors: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111101001010000

Octal: 175120

Duodecimal: 31100

Hexadecimal: fa50

Square: 4106246400

Square Root: 253.14027731674784

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

a(n) = ∑_d∣3 φ(d)*n^3/d. A54602

a(n) = a(n-1) + a(n-2) - 1 for n > 1, a(0)=3, a(1)=2. A1612

a(n) = Fibonacci(n-1) + Fibonacci(n+1) - (-1)ⁿ. A98600

Number of cyclic binary n-bit strings with no alternating substring of length > 2. A7039

a(n) = Z(S_m; σ[1](n), σ[2](n),..., σ[m](n)) where Z(S_m; x₁,x₂,...,x_m) is the cycle index of the symmetric group S_m and σ[k](n) is the sum of k-th powers of divisors of n; m=3. A68020

Smallest number k such that prime(n) is the n-th divisor of k. A221647

Ceiling(φⁿ) where φ = (1+sqrt(5))/2. A169986

Inverse Moebius transform of Lucas numbers (A000032) 1,3,4,7,11,.. A100107

Ordered pairs of permutation functions on n elements where f(g(g(x))) = g(g(f(x))). A239841

a(n) = (-1)ⁿ * A000032(n) - 1. A355021