Properties of the Number 72218

Seventy-Two Thousand Two Hundred Eighteen

Basics

Value: 72217 → 72218 → 72219

Parity: even

Prime: No

Previous Prime: 72211

Next Prime: 72221

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 36109

Divisors: 1, 2, 36109, 72218

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 10001101000011010

Octal: 215032

Duodecimal: 35962

Hexadecimal: 11a1a

Square: 5215439524

Square Root: 268.73406929527937

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

Consider the Reverse and Add! problem (cf. A001127); of all the n-digit numbers N which eventually reach a palindrome, pick that number N which takes the greatest number of steps to converge (in case of a tie, pick the smallest N); sequence gives palindrome that is reached. A72218