Properties of the Number 42213

Forty-Two Thousand Two Hundred Thirteen

Basics

Value: 42212 → 42213 → 42214

Parity: odd

Prime: No

Previous Prime: 42209

Next Prime: 42221

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 3 × 14071

Divisors: 1, 3, 14071, 42213

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010010011100101

Octal: 122345

Duodecimal: 20519

Hexadecimal: a4e5

Square: 1781937369

Square Root: 205.45802491019913

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

T(n,k)=Number of nXk 0..4 arrays with each element·equal to the number of its horizontal and vertical neighbors equal to 3,1,2,0,4 for x=0,1,2,3,4. A196912

Least number beginning with n such that every concatenation is a prime. A90506

Number of nX3 0..4 arrays with each element·equal to the number its horizontal and vertical neighbors equal to 3,1,2,0,4 for x=0,1,2,3,4. A196907

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 459", based on the 5-celled von Neumann neighborhood. A272289

Denominators of continued fraction convergents to sqrt(632). A42213

Smallest prime p such that decimals digits 1, ..., k (k = 1, ..., 9) and 0 appear in any order in 3·p. A178342