Properties of the Number 12801

Twelve Thousand Eight Hundred One

Basics

Value: 12800 → 12801 → 12802

Parity: odd

Prime: No

Previous Prime: 12799

Next Prime: 12809

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 3 × 17 × 251

Divisors: 1, 3, 17, 51, 251, 753, 4267, 12801

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11001000000001

Octal: 31001

Duodecimal: 74A9

Hexadecimal: 3201

Square: 163865601

Square Root: 113.14150432091665

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

Fermat pseudoprimes to base 2, also called Sarrus numbers or Poulet numbers. A1567

Euler pseudoprimes: composite numbers n such that 2^(n-1/2) == +-1 (mod n). A6970

Euler-Jacobi pseudoprimes: 2^(n-1/2) == (2 / n) mod n, where (2 / n) is a Jacobi symbol. A47713

Pseudoprimes to base 5. A5936

Euler pseudoprimes to base 5: composite integers such that abs(5^{(n - 1}/2)) == 1 mod n. A262052

Third row of Pascal-(1,3,1) array A081578. A81585

Pseudoprimes to base 10. A5939

Composite numbers k such that k == +-1 (mod 8) and 2^(k-1/2) == 1 (mod k). A6971

a(n) is the first of a triple of consecutive integers, each of which is the product of three distinct primes. A66509

Integers k such that all the digits needed to write the consecutive nonnegative integers from 0 to k fill exactly a square (no holes, no overlaps). A158022