Properties of the Number 42145

Forty-Two Thousand One Hundred Forty-Five

Basics

Value: 42144 → 42145 → 42146

Parity: odd

Prime: No

Previous Prime: 42139

Next Prime: 42157

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 5 × 8429

Divisors: 1, 5, 8429, 42145

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

603 Try Today's Challenge

Representations

Binary: 1010010010100001

Octal: 122241

Duodecimal: 20481

Hexadecimal: a4a1

Square: 1776201025

Square Root: 205.29247428973133

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

Constant term of the reduction by x² -> x+1 of the polynomial p(n,x) defined at Comments. A192979

Decimal part of cube root of a(n) starts with 8: first term of runs. A34134

Number of binary arrays indicating the locations of trailing edge maxima of a random length-n 0..3 array extended with zeros and convolved with -1,2,-1. A222038

Numbers k such that (10^k + 77)/3 is prime. A281303

Denominators of continued fraction convergents to sqrt(597). A42145