Properties of the Number 64688

Sixty-Four Thousand Six Hundred Eighty-Eight

Basics

Value: 64687 → 64688 → 64689

Parity: even

Prime: No

Previous Prime: 64679

Next Prime: 64693

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 2 ⁴ × 13 × 311

Divisors: 1, 2, 4, 8, 13, 16, 26, 52, 104, 208

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1111110010110000

Octal: 176260

Duodecimal: 31528

Hexadecimal: fcb0

Square: 4184537344

Square Root: 254.33835731167252

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

Susceptibility series H₃ for 2-dimensional Ising model (divided by 2). A54410

Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where column k is the expansion of B(x)^k, where B(x) is the g.f. of A381568. A381567

G.f. A(x) satisfies A(x) = (1 + x·A(x·A(x)))². A381568

a(n) = a(n-1) + a(n-2) + 1, with a(0)=3, a(1)=12. A22411

a(n) = number of partitions of primes into distinct (also odd) parts. A64688