Properties of the Number 42340

Forty-Two Thousand Three Hundred Forty

Basics

Value: 42339 → 42340 → 42341

Parity: even

Prime: No

Previous Prime: 42337

Next Prime: 42349

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 5 × 29 × 73

Divisors: 1, 2, 4, 5, 10, 20, 29, 58, 73, 116

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010010101100100

Octal: 122544

Duodecimal: 20604

Hexadecimal: a564

Square: 1792675600

Square Root: 205.7668583615933

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

Divide primes in groups with 2n elements and add together. A109726

2n⁴+6n²+4 = 2(n²+1)(n²+2). A120571

a(n) = n*(n+1)*(5·n+1)/3. A174814

Expansion of (G(-x) / χ(-x))² in powers of·where χ() is a Ramanujan θ function and G() is a Rogers-Ramanujan function. A261866

Number of involutions of [n] having exactly one peak. A303649

Number of 6-step S, E, and NW-moving king's tours on an n X n board summed over all starting positions. A187511

Numerators of continued fraction convergents to sqrt(697). A42340