Properties of the Number 64528

Sixty-Four Thousand Five Hundred Twenty-Eight

Basics

Value: 64527 → 64528 → 64529

Parity: even

Prime: No

Previous Prime: 64513

Next Prime: 64553

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ⁴ × 37 × 109

Divisors: 1, 2, 4, 8, 16, 37, 74, 109, 148, 218

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 1111110000010000

Octal: 176020

Duodecimal: 31414

Hexadecimal: fc10

Square: 4163862784

Square Root: 254.02362094891885

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 nesting labeled digraphs with vertices {1..n}. A326209

Unit-anchored semiperfect numbers (A392910) whose odd part (A000265) is not prime. A392911

a(n) = 3·a(n-1) + 4·a(n-2) - a(n-3) + 3·a(n-4) + 4·a(n-5). A135450

a(n) = sum_of_digits(a(n-1)^a(n-2)) where a(1)=1 and a(2)=2. A338917

Number of 4-power-free binary words of length n. A273154

Numbers which converge to 2592 under repeated application of the powertrain map of A133500. A135384

G.f. A(x) = ∑_n>=0 a(n)*xⁿ where a(n) = ∑_k=0..n-1 [x^k] A(x)^k*(n-k) for n >= 1 with a(0) = 1. A377098

Positive numbers that do not appear in A064520. A64528