Properties of the Number 42291

Forty-Two Thousand Two Hundred Ninety-One

Basics

Value: 42290 → 42291 → 42292

Parity: odd

Prime: No

Previous Prime: 42283

Next Prime: 42293

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 37 × 127

Divisors: 1, 3, 9, 37, 111, 127, 333, 381, 1143, 4699

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010010100110011

Octal: 122463

Duodecimal: 20583

Hexadecimal: a533

Square: 1788528681

Square Root: 205.6477570993664

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 strings of n decimal digits that contain at least one string of exactly 3 consecutive "0" digits. A255373

Dirichlet g.f.: ∏_k>=2 (1 + k^-s)^k³. A343323

Sixth column (r=5) of FS(3) staircase array A062745. A62749

Number of ordered triples (w,x,y) with all terms in {-n,...-1,1,...,n} and 3w+x+y>0. A211628

Expansion of ∏_k>=1 (1 - k·x^k)^{k^(k-1}). A295234

Denominators of continued fraction convergents to sqrt(671). A42291

Number of strings of k+n decimal digits that contain one string of exactly k consecutive "0" digits, where k >= n. A255381