Properties of the Number 28213

Twenty-Eight Thousand Two Hundred Thirteen

Basics

Value: 28212 → 28213 → 28214

Parity: odd

Prime: No

Previous Prime: 28211

Next Prime: 28219

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 89 × 317

Divisors: 1, 89, 317, 28213

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111000110101

Octal: 67065

Duodecimal: 143B1

Hexadecimal: 6e35

Square: 795973369

Square Root: 167.96725871431016

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

Smallest semiprime (A001358) which is at the end of an arithmetic progression of n semiprimes. A96003

Least number that ends an arithmetic progression of n numbers with the same prime signature. A87309

Least number that ends an arithmetic progression of n numbers with the same number of divisors. A90548

Odd primitive numbers such that n! divided by product of factorials of all proper divisors of n is not an integer. A75460

Number of (n+1)X(3+1) 0..3 arrays with every 2X2 subblock having the absolute values of all six edge and diagonal differences no larger than 1. A234156

Expansion of 1/((1-6x)(1-8x)(1-10x)(1-11x)). A28213