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Properties of the Number 13143

Thirteen Thousand One Hundred Forty-Three

Basics

Value: 13142 → 13143 → 13144

Parity: odd

Prime: No

Previous Prime: 13127

Next Prime: 13147

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 3 × 13 × 337

Divisors: 1, 3, 13, 39, 337, 1011, 4381, 13143

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 11001101010111

Octal: 31527

Duodecimal: 7733

Hexadecimal: 3357

Square: 172738449

Square Root: 114.64292389851194

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

Convolution of primes with themselves. A14342
Sequence A001033 gives the numbers n such that the sum of the squares of n consecutive odd numbers x2 + (x+2)2 + ... +(x+2n-2)2 = k2 for some integer k. For each n, this sequence gives the least value of k. A56132
A hexagonal spiral Fibonacci sequence. A94926
Number of (w,x,y,z) with all terms in {1,...,n} and w+x+y=|x-y|+|y-z|. A212678
Expansion of 1/(1 - ∑i>=1, j>=1, k>=1, l>=1 xi·j*k·l). A304964
Positive numbers k such that k and 2·k are anagrams in base 5 (written in base 5). A23061
Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 387", based on the 5-celled von Neumann neighborhood. A271545
Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 411", based on the 5-celled von Neumann neighborhood. A271891
Number of excursions of length n with Motzkin-steps avoiding the consecutive steps UU, HH and DU. A329694
Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 76. A31574