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Properties of the Number 11728

Eleven Thousand Seven Hundred Twenty-Eight

Basics

Value: 11727 → 11728 → 11729

Parity: even

Prime: No

Previous Prime: 11719

Next Prime: 11731

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 4 × 733

Divisors: 1, 2, 4, 8, 16, 733, 1466, 2932, 5864, 11728

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10110111010000

Octal: 26720

Duodecimal: 6954

Hexadecimal: 2dd0

Square: 137545984

Square Root: 108.29589096544707

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

T(n,k)=Number of (n+1)X(k+1) arrays of permutations of 0..(n+1)*(k+1)-1 with each element having directed index change -1,1 -1,2 1,0 or 0,-1. A264550
Number of maximal subsets of {1..n} containing n such that every pair of distinct elements has a different quotient. A325869
T(n,k) is the number of (n+1) X (k+1) 0..6 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 6, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings). A235239
Number of squares on infinite half chessboard at <=n knight moves from a fixed point on the edge. A98498
The smallest position with nim-value n in subtract-a-square game. A297963
Glaisher's function W(n). A2470
a(n) is the number of edges formed by n-secting the angles of an octagon. A335771
a(n) is the unique number m such that A034460(m) = A357324(n). A357325
Numbers k such that 6·p(k)*p(k+1)*p(k+2)*p(k+3)*p(k+4)*p(k+5)*p(k+6)-1 and 6·p(k)*p(k+1)*p(k+2)*p(k+3)*p(k+4)*p(k+5)*p(k+6)+1 are twin primes with p(h) = h-th prime. A129313
p-INVERT of the positive integers, where p(S) = 1 - S2 - S3. A290900