Properties of the Number 42307

Forty-Two Thousand Three Hundred Seven

Basics

Value: 42306 → 42307 → 42308

Parity: odd

Prime: Yes

Previous Prime: 42299

Next Prime: 42323

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 42307

Divisors: 1, 42307

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010010101000011

Octal: 122503

Duodecimal: 20597

Hexadecimal: a543

Square: 1789882249

Square Root: 205.6866548903939

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 n such that p(8n) is prime, where p(n) is the number of partitions of n. A114168

Primes of the form 2n²+18n+7, n>=0. A154592

Prime number spiral (clockwise, Southwest spoke). A54568

Lexicographically largest increasing sequence of primes for which the continued square root map (see A257574) produces the decimal expansion of e (Euler's number). A257764

List of prime factors of 10^{10^(10¹⁰⁰}) - 10. A227246

Pillai's arithmetical function: ∑_k=1..n gcd(k, n). A18804

Denominators of continued fraction convergents to sqrt(680). A42307

Continued fraction expansion of a constant r such that the odd-indexed bisection equals the continued fraction of 2·r, with an even-indexed bisection of all 2's. A322728