Properties of the Number 42368

Forty-Two Thousand Three Hundred Sixty-Eight

Basics

Value: 42367 → 42368 → 42369

Parity: even

Prime: No

Previous Prime: 42359

Next Prime: 42373

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ⁷ × 331

Divisors: 1, 2, 4, 8, 16, 32, 64, 128, 331, 662

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010010110000000

Octal: 122600

Duodecimal: 20628

Hexadecimal: a580

Square: 1795047424

Square Root: 205.8348852842977

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

Number of ways to place 5 nonattacking kings on an n X n board. A61998

Triangle read by rows: T(n,k) = number of ways to place k nonattacking kings on an n X n board. A193580

Triangle T(m,k) read by rows, where T(m,k) is the number of ways in which 1<=k<=m positions can be picked in an m X m square array such that all positions are mutually isolated. Two positions (s,t),(u,v) are considered as isolated from each other if min(abs(s-u),abs(t-v))>1. A98487

Binomial transform of A001156. A294529

Expansion of ∏_m>=1 (1+m*(m+1)*q^m). A92485

Smallest of 5 consecutive integers divisible respectively by 5 consecutive primes. A72730

Sum of primes between n and n². A109818

Define Tuba numbers T(k,d,b) (0 <= d < b) by ∑_j=0..k binomial(k,j)*floor((k+d)/b)^k-j*T(j,d,b) = δ(k,0). Sequence gives T(n,0,2). A124453

a(n) = 2^n-4*(4·n² - 16·n + 23). A217529

Numerators of continued fraction convergents to sqrt(711). A42368