Properties of the Number 42730

Forty-Two Thousand Seven Hundred Thirty

Basics

Value: 42729 → 42730 → 42731

Parity: even

Prime: No

Previous Prime: 42727

Next Prime: 42737

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 × 5 × 4273

Divisors: 1, 2, 5, 10, 4273, 8546, 21365, 42730

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010011011101010

Octal: 123352

Duodecimal: 2088A

Hexadecimal: a6ea

Square: 1825852900

Square Root: 206.71236053995418

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 k such that 8·3^k - 1 is prime. A5541

McKay-Thompson series of class 36C for Monster. A58646

Number of ways, counted up to symmetry, to build a contiguous building with n LEGO blocks of size 1 X 3 which is flat, i.e., with all blocks in parallel position. A123772

Numerators of continued fraction convergents to sqrt(895). A42730

Numbers that can be expressed as the product of three 2-digit numbers. A33830

Number of nX5 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 0 or 2 neighboring 1s. A296332