Properties of the Number 42740

Forty-Two Thousand Seven Hundred Forty

Basics

Value: 42739 → 42740 → 42741

Parity: even

Prime: No

Previous Prime: 42737

Next Prime: 42743

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 5 × 2137

Divisors: 1, 2, 4, 5, 10, 20, 2137, 4274, 8548, 10685

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010011011110100

Octal: 123364

Duodecimal: 20898

Hexadecimal: a6f4

Square: 1826707600

Square Root: 206.73654732533385

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

Numerator of Hermite(n, 5/27). A160104

Decimal part of a(n)^1/5 starts with a 'nine digits' anagram. A34280

Numbers k such that k!6 - 27 is prime, where k!6 is the sextuple factorial number (A085158). A289698

Numerators of continued fraction convergents to sqrt(901). A42740