Properties of the Number 42159

Forty-Two Thousand One Hundred Fifty-Nine

Basics

Value: 42158 → 42159 → 42160

Parity: odd

Prime: No

Previous Prime: 42157

Next Prime: 42169

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 13 × 23 × 47

Divisors: 1, 3, 13, 23, 39, 47, 69, 141, 299, 611

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010010010101111

Octal: 122257

Duodecimal: 20493

Hexadecimal: a4af

Square: 1777381281

Square Root: 205.32656915265497

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

Numbers n such that 19·n² + 19·n + 1 is a square. A101180

Composite squarefree integers for which the sum of the squares of their factors is a square. A379780

Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite LTN = Linde Type N Na384[Al384Si384O1536].518H2O starting with a T3 atom. A19038

Numbers n such that the sum of the digits of n^φ(n) is divisible by n. A109660

Denominators of continued fraction convergents to sqrt(604). A42159