Properties of the Number 12727

Twelve Thousand Seven Hundred Twenty-Seven

Basics

Value: 12726 → 12727 → 12728

Parity: odd

Prime: No

Previous Prime: 12721

Next Prime: 12739

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 11 × 13 × 89

Divisors: 1, 11, 13, 89, 143, 979, 1157, 12727

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000110110111

Octal: 30667

Duodecimal: 7447

Hexadecimal: 31b7

Square: 161976529

Square Root: 112.81400622263178

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

Numbers k such that 2^k + 9 is prime. A57196

Numbers k such that there is 1 prime between 100·k and 100·k + 99. A186393

Coefficient of x⁶ in expansion of (1+x+x²)ⁿ. A5714

Number of n-variations of the set {1,2,...,n+1} satisfying p(i)-i in {-2,0,2}, i=1..n (an n-variation of the set N_n+s = {1,2,...,n+s} is any 1-to-1 mapping p from the set N_n = {1,2,...,n} into N_n+s = {1,2,...,n+s}). A217694

T(n,k)=Number of nXk 0..1 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly one mistake. A278676

Measures of entanglement in 3-qbits. A129548

a(n) = n*(n+1)*(n+2)*(n+3)*(2·n²+6·n+7)/360. A259181

Number of equivalence classes of convex lattice polygons of genus n, restricting the count to those polygons that are interior to another polygon. A322344

T(n,[ n/2 ]), T given by A027907. A27913

Integers·with h+1 digits that have the property that there exists an integer k, with x <= k < 2·x, such that k/x = 1 + (x-10^h)/(10^h-1), i.e., the same digits appear in the denominator and in the recurring decimal. A288781