Properties of the Number 42170

Forty-Two Thousand One Hundred Seventy

Basics

Value: 42169 → 42170 → 42171

Parity: even

Prime: No

Previous Prime: 42169

Next Prime: 42179

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 × 5 × 4217

Divisors: 1, 2, 5, 10, 4217, 8434, 21085, 42170

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010010010111010

Octal: 122272

Duodecimal: 204A2

Hexadecimal: a4ba

Square: 1778308900

Square Root: 205.35335400231475

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

Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 587", based on the 5-celled von Neumann neighborhood. A283143

a(n) is the number of compositions of n, b₁ + ... + b_t = n such that sqrt(b₁ + sqrt(b₂ + ... + sqrt(b_t)...)) is an integer. A338271

Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 13. A31601

Smallest number whose eighth power has at least n digits. A130082

Numbers n such that the n-th digit (after the decimal point) in the decimal expansion of π are the occurrence of the least significant digit represented by the more significant digits. A201545

Numerators of continued fraction convergents to sqrt(610). A42170