Properties of the Number 72200

Seventy-Two Thousand Two Hundred

Basics

Value: 72199 → 72200 → 72201

Parity: even

Prime: No

Previous Prime: 72173

Next Prime: 72211

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 ³ × 5 ² × 19 ²

Divisors: 1, 2, 4, 5, 8, 10, 19, 20, 25, 38

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 10001101000001000

Octal: 215010

Duodecimal: 35948

Hexadecimal: 11a08

Square: 5212840000

Square Root: 268.70057685088807

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

a(n) = n²*(n+1)²/2. A163102

Numbers of the form p³*q²*r² where p, q, and r are distinct primes. A179695

Number of (unlabeled) loopless multigraphs such that the sum of the numbers of vertices and edges is n. A265581

a(n) = (2·n²*(n² - 3) - (2·n² + 1)*(-1)ⁿ + 1)/64. A302647

Nontotients (A005277) that are the product of two totients (A002202). A329872

Chessboard rectangles sequence (see Comments), also A037270 interleaved with A163102. A317714

Number of (n+1) X (2+1) 0..3 arrays with every 2 X 2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 9. A234134

Number of (n+1) X (6+1) 0..2 arrays colored with the upper median value of each 2 X 2 subblock. A235952

Numbers n = d_0d_1...d_n (n < 10) such that d_i is the number of digits equal to i in n (base b), where b is less than 10. A260387

Number of bifix-free (or primary, or unbordered) words of length n over a two-letter alphabet. A3000