Properties of the Number 12319

Twelve Thousand Three Hundred Nineteen

Basics

Value: 12318 → 12319 → 12320

Parity: odd

Prime: No

Previous Prime: 12301

Next Prime: 12323

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 97 × 127

Divisors: 1, 97, 127, 12319

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000000011111

Octal: 30037

Duodecimal: 7167

Hexadecimal: 301f

Square: 151757761

Square Root: 110.99099062536563

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

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

Quasi-Carmichael numbers to exactly two bases. A257752

T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having nonzero determinant and commuting with every horizontal or vertical neighbor. A206343

Odd semiprimes p·q, such that Stern polynomial B(p·q,x) is a product of B(p,x) and B(q,x). A391256

a(1) = 1, a(n) = 2·a(n-1) + a([n/2]). A33489

a(n) = 4·n⁴ + 8·n³ - 4·n - 1 = (2·n² - 1)*(2·n² + 4·n + 1). A57769

Numbers which are the sum of 3 cubes of distinct odd primes. A138853

Composite numbers n such that the sum of divisors of n, σ(n), divided by the number of divisors, d(n) and σ(n) minus n are both rational squares. A49226

Smallest solution m to (n+1)*φ(m) = n*σ(m), or -1 if no solution exists. A65824

Values of 16·n²+24·n+7, n>=0, each duplicated. A173294