Properties of the Number 42722

Forty-Two Thousand Seven Hundred Twenty-Two

Basics

Value: 42721 → 42722 → 42723

Parity: even

Prime: No

Previous Prime: 42719

Next Prime: 42727

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 × 41 × 521

Divisors: 1, 2, 41, 82, 521, 1042, 21361, 42722

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1010011011100010

Octal: 123342

Duodecimal: 20882

Hexadecimal: a6e2

Square: 1825169284

Square Root: 206.69300907384363

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

The number of edges in a graph induced by a regular drawing of K_n,n. A290132

Minimal number of moves for the cyclic variant of Hanoi's tower for 4 pegs and n disks, with the final peg two steps away. A292764

G.f.: exp( ∑_n>=1 2^A090740(n) * xⁿ/n ) where A090740(n) = highest exponent of 2 in 3ⁿ-1. A182000

a(n) = sigma₃(n) - sigma₂(n) - sigma₁(n). A92350

Numerators of continued fraction convergents to sqrt(891). A42722