Properties of the Number 42490

Forty-Two Thousand Four Hundred Ninety

Basics

Value: 42489 → 42490 → 42491

Parity: even

Prime: No

Previous Prime: 42487

Next Prime: 42491

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 5 × 7 × 607

Divisors: 1, 2, 5, 7, 10, 14, 35, 70, 607, 1214

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010010111111010

Octal: 122772

Duodecimal: 2070A

Hexadecimal: a5fa

Square: 1805400100

Square Root: 206.13102629153138

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

Sum of squares of parts of the partitions of 2n into two squarefree parts. A280316

Indices where A092243 strictly changes sign. A269737

Numbers which when multiplied by any repunit prime Rp give a Smith number. A104167

Values of n such that prime(n) does not divide any 10-digit pandigital number (i.e. any value in A050278). A292703

Number of ways to place 7 points on an n X n square grid so that no more than 2 points are on a vertical or horizontal straight line. A279441

Numerators of continued fraction convergents to sqrt(773). A42490