Properties of the Number 42217

Forty-Two Thousand Two Hundred Seventeen

Basics

Value: 42216 → 42217 → 42218

Parity: odd

Prime: No

Previous Prime: 42209

Next Prime: 42221

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 7 × 37 × 163

Divisors: 1, 7, 37, 163, 259, 1141, 6031, 42217

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010010011101001

Octal: 122351

Duodecimal: 20521

Hexadecimal: a4e9

Square: 1782275089

Square Root: 205.46775902802852

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 atoms in a decahedron with n shells. A4068

Numbers k such that the sum of the divisors of 2·k² is a square. A97023

Number of (w,x,y,z) with all terms in {1,...,n} and |w-x|=|x-y|+|y-z|. A212570

Number of -1..1 arrays x(i) of n+1 elements i=1..n+1 with set{t,u,v in 0,1}((x[i+t]+x[j+u]+x[k+v])*(-1)^t+u+v) having one, two, three, four, five or six distinct values for every i,j,k<=n. A211531

Numbers n such that the average of the positive divisors of n² is a square. A272442

Denominators of continued fraction convergents to sqrt(634). A42217