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Properties of the Number 12724

Twelve Thousand Seven Hundred Twenty-Four

Basics

Value: 12723 → 12724 → 12725

Parity: even

Prime: No

Previous Prime: 12721

Next Prime: 12739

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 2 × 3181

Divisors: 1, 2, 4, 3181, 6362, 12724

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 11000110110100

Octal: 30664

Duodecimal: 7444

Hexadecimal: 31b4

Square: 161900176

Square Root: 112.8007092176286

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

Positive numbers whose product of digits is 7 times their sum. A62384
Rounded volume of a regular icosahedron with edge length n. A71402
Total number of inversions in all partitions of n into distinct parts. A271371
Numbers n such that A003145(n) = floor(α2*n)+1, where α = 1.839... is the positive real zero of x3-x2-x-1. A278352
a(n) is the least k such that A261865(k) = A005117(n). A262036
Numbers n such that 4·10n + 2·Rn + 1 is prime, where Rn = 11...1 is the repunit (A002275) of length n. A102985
Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where column k is the expansion of e.g.f. B(x)k, where B(x) is the e.g.f. of A213108. A384801
Number of partitions of n such that cn(0,5) = cn(2,5) < cn(1,5) = cn(3,5) = cn(4,5). A36857
Number of walks within N3 (the first octant of Z3) starting at (0,0,0) and consisting of n steps taken from {(-1, 0, 0), (-1, 0, 1), (0, -1, 1), (0, 1, 0), (1, 0, -1)}. A148156
Number of nonequivalent ways to select 4 disjoint point triples from an n X n X n triangular point grid, each point triple forming a 2 X 2 X 2 triangle. A289231