Properties of the Number 72730

Seventy-Two Thousand Seven Hundred Thirty

Basics

Value: 72729 → 72730 → 72731

Parity: even

Prime: No

Previous Prime: 72727

Next Prime: 72733

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 5 × 7 × 1039

Divisors: 1, 2, 5, 7, 10, 14, 35, 70, 1039, 2078

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001110000011010

Octal: 216032

Duodecimal: 3610A

Hexadecimal: 11c1a

Square: 5289652900

Square Root: 269.6850014368615

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 whose square is the concatenation of two numbers k and k+4. A115438

The (2ⁿ)-th composite number. A65856

Triangular array, read by rows: T(n,k) = [(x·y*z)^k] (-1 + (1 + x + 1/x)*(1 + y + 1/y)*(1 + z + 1/z))ⁿ for -n <= k <= n. A329819

Number of 3 X n arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..1 3 X n array. A219774

Numbers n such that 10ⁿ - 99 is prime. A178439

Smallest of 5 consecutive integers divisible respectively by 5 consecutive primes. A72730

Number of (n+1)X3 0..3 arrays with every 2X2 subblock trace equal to exactly one or two horizontal and vertical neighbor 2X2 subblock traces. A186916