Properties of the Number 13040

Thirteen Thousand Forty

Basics

Value: 13039 → 13040 → 13041

Parity: even

Prime: No

Previous Prime: 13037

Next Prime: 13043

Digit Sum: 8

Digital Root: 8

Palindrome: No

Factorization: 2 ⁴ × 5 × 163

Divisors: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11001011110000

Octal: 31360

Duodecimal: 7668

Hexadecimal: 32f0

Square: 170041600

Square Root: 114.19281938896158

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

Multiples of 8 with digit sum 8. A69543

a(n) = 2·n*(4·n + 3). A33587

T(n,k) = number of arrays of median of three adjacent elements of some length n+2 0..k array, with no adjacent equal elements in the latter. A229012

T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with the sums of 2X2 subblocks nondecreasing rightwards and downwards. A204039

T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00010001 00010101 or 01010101. A261113

Lesser of two consecutive numbers each divisible by a fourth power. A68782

Number of reduced words of length n in the Weyl group E₇ on 7 generators and order 2903040. A162493

The number of edges in a Farey diagram of order (n,n). A358884

Row sums of triangle A134464. A134465

Boustrophedon transform of Catalan numbers 1, 1, 1, 2, 5, 14, ... A736