Properties of the Number 12790

Twelve Thousand Seven Hundred Ninety

Basics

Value: 12789 → 12790 → 12791

Parity: even

Prime: No

Previous Prime: 12781

Next Prime: 12791

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 5 × 1279

Divisors: 1, 2, 5, 10, 1279, 2558, 6395, 12790

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000111110110

Octal: 30766

Duodecimal: 749A

Hexadecimal: 31f6

Square: 163584100

Square Root: 113.09288218097548

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

Number of threshold functions on n X n grid. A114146

Triangle of generalized Stirling numbers of the first kind read by rows: T(n, k) = (-1)^n+k*∑_m=0..n Stirling1(n, m) * binomial(m, k) * 2^m-k, where Stirling1 is A048994. A94646

T(n,k)=Number of nXk 0,1 arrays indicating 2X2 subblocks of some larger (n+1)X(k+1) binary array having determinant equal to one, with rows and columns of the latter in nondecreasing lexicographic order. A227641

a(n) = 441·n + 1. A158322

Values of A038007 not ending in 6 or 8. A38009

a(n) = 15·n² + 6·n + 1. A80861

Number of nonempty subsets of {1, 2, ..., n} with <= 4 pairwise coprime elements. A187265

Closed 3-dimensional ball numbers (version 2): a(n)= number of integer points (i,j,k) contained in a closed ball of diameter n, centered at (1/2,0,0). A53593

Number of compositions of n into 4 parts such that no two adjacent parts are equal. A106353

a(n) is the number of digits in the decimal representation of the smallest power of n that contains nine consecutive identical digits. A217184