Properties of the Number 12539

Twelve Thousand Five Hundred Thirty-Nine

Basics

Value: 12538 → 12539 → 12540

Parity: odd

Prime: Yes

Previous Prime: 12527

Next Prime: 12541

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 12539

Divisors: 1, 12539

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000011111011

Octal: 30373

Duodecimal: 730B

Hexadecimal: 30fb

Square: 157226521

Square Root: 111.97767634667188

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

Primes of the form p·q + p + q, where p and q are two successive primes. A96342

Trajectory of n under the Reverse and Add! operation carried out in base 4 (presumably) does not reach a palindrome and (presumably) does not join the trajectory of any term m < n. A75421

Initial term in sequence of four consecutive primes separated by 3 consecutive differences each <=6 (i.e., when d=2,4 or 6) and forming d-pattern=[2, 6,6]; short d-string notation of pattern = [266]. A78849

Primes p such that the number of distinct prime divisors of all composite numbers between p and the next prime is 5. A75585

Smallest balanced prime of order n. A82080

Primes of the form 2·p+1 where p is prime and p+1 is squarefree. A153209

Primes p such that p-1 is a semiprime and p+2 is prime or prime squared. A181602

Primes p of the form 6n-1 such that p-1 is a semiprime and p+2 is prime or prime squared. A181669

Primes of form k² - 5. A28877

Primes p such that 2·prime(p) + 1 = prime(q) for some prime q. A261361