Properties of the Number 12239

Twelve Thousand Two Hundred Thirty-Nine

Basics

Value: 12238 → 12239 → 12240

Parity: odd

Prime: Yes

Previous Prime: 12227

Next Prime: 12241

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 12239

Divisors: 1, 12239

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10111111001111

Octal: 27717

Duodecimal: 70BB

Hexadecimal: 2fcf

Square: 149793121

Square Root: 110.63001401066529

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 36·k² - 810·k + 2753, listed in order of increasing parameter k >= 0. A50268

a(n) = A006496(n)/2. A45873

a(n) = (n³)/2 + (3·n²)/2 + 3·n + 3. A127873

Start of a string of exactly 2 consecutive (but disjoint) pairs of twin primes. A35790

Numbers whose least quadratic nonresidue (A020649) is 13. A25025

Primes p with the following property: let d₁, d₂, ... be the distinct digits occurring in the decimal expansion of p. Then for each d_i, dropping all the digits d_i from p produces a prime number. Leading 0's are not allowed. A57876

Father primes of order 8. A136077

Prime numbers of the form (x³)/2+(3x²)/2+3x+3. A127874

Number of maximal subsets of {1..n} containing n such that every subset has a different sum. A325867

T(n,k)=Number of nXk arrays containing k copies of 0..n-1 with every element equal to or 1 greater than any west neighbor modulo n and the upper left element equal to 0. A267629