Properties of the Number 75213

Seventy-Five Thousand Two Hundred Thirteen

Basics

Value: 75212 → 75213 → 75214

Parity: odd

Prime: No

Previous Prime: 75211

Next Prime: 75217

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 61 × 137

Divisors: 1, 3, 9, 61, 137, 183, 411, 549, 1233, 8357

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10010010111001101

Octal: 222715

Duodecimal: 37639

Hexadecimal: 125cd

Square: 5656995369

Square Root: 274.2498860528478

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 n divides the (right) concatenation of all numbers <= n written in base 23 (most significant digit on right). A29516

a(n) is the number of triangular partitions whose Young diagram fits inside a square of side n. A368638

Number of polyhexes with n cells that tile the plane isohedrally but not by translation or by 180-degree rotation (Conway criterion). A75213