Properties of the Number 64672

Sixty-Four Thousand Six Hundred Seventy-Two

Basics

Value: 64671 → 64672 → 64673

Parity: even

Prime: No

Previous Prime: 64667

Next Prime: 64679

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ⁵ × 43 × 47

Divisors: 1, 2, 4, 8, 16, 32, 43, 47, 86, 94

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1111110010100000

Octal: 176240

Duodecimal: 31514

Hexadecimal: fca0

Square: 4182467584

Square Root: 254.30690120403733

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

Numbers k such that (σ(k)+σ(k+1))/σ(2·k+1) is an integer, where σ = A000203. A91287

Numbers k such that σ(k+1)+σ(k) = σ(2k+1). A67171

Numbers k such that s(k) = s(k+1), where s(k) is the sum of recursive divisors of k (A333926). A333949

Duplicate of A067171. A91288

Numbers k such that A051378(k) = A051378(k+1). A349283

a(0) = 0, a(1) = 1; for a(n), n >= 2, write n = x² + y with y >= 0 as small as possible, then a(n) = a(x) + a(y). A64672