Properties of the Number 82513

Eighty-Two Thousand Five Hundred Thirteen

Basics

Value: 82512 → 82513 → 82514

Parity: odd

Prime: No

Previous Prime: 82507

Next Prime: 82529

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 109 × 757

Divisors: 1, 109, 757, 82513

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100001001010001

Octal: 241121

Duodecimal: 3B901

Hexadecimal: 14251

Square: 6808395169

Square Root: 287.2507615307573

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

Strong pseudoprimes to base 3. A20229

Base-3 Euler-Jacobi pseudoprimes. A48950

Composite numbers k == 1, 11 (mod 12) such that 3^(k-1/2) == 1 (mod k). A375917

Super pseudoprimes (or superpseudoprimes) to base 3: Fermat pseudoprimes to base 3 all of whose divisors that are larger than 1 are either primes or Fermat pseudoprimes to base 3. A328662

Strong pseudoprimes to base 23. A20249

The "residue" pseudoprimes: odd composite numbers n such that q(n)^(n-1/2) == 1 (mod n), where base q(n) is the smallest prime quadratic residue modulo n. A307798

Strong pseudoprimes to base 28. A20254

Strong pseudoprimes to base 55. A20281

Strong pseudoprimes to base 67. A20293

Strong pseudoprimes to base 69. A20295