Properties of the Number 13377

Thirteen Thousand Three Hundred Seventy-Seven

Basics

Value: 13376 → 13377 → 13378

Parity: odd

Prime: No

Previous Prime: 13367

Next Prime: 13381

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 7 ³ × 13

Divisors: 1, 3, 7, 13, 21, 39, 49, 91, 147, 273

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11010001000001

Octal: 32101

Duodecimal: 78A9

Hexadecimal: 3441

Square: 178944129

Square Root: 115.65898149300814

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

Triangle read by rows: T(n, m) = number of forests with n nodes and m labeled trees. Also number of forests with exactly n - m edges on n labeled nodes. A105599

Triangle read by rows: T(n, k) is the number of forests on n labeled nodes with k edges. T(n, k) for n >= 1 and 0 <= k <= n-1. A138464

G.f.: 1/((1-x)*(1-x²))³. A38163

a(n) = binomial(n+4,4)*(4·n+5)/5. A34263

Number of tilings of a 2 X n board with 1 X 1 and L-shaped tiles (where the L-shaped tiles cover 3 squares). A127864

20-gonal (or icosagonal) numbers: a(n) = n*(9·n-8). A51872

Visible factor numbers (VFNs): composite numbers k with the property that every prime factor of k can be found in the decimal expansion of k and every digit of k can be covered by a prime factor. A83359

Given the 3 X 3 matrix M = [0 1 0 / 0 0 1 / 7 -14 7], a(n) = (-) rightmost term of Mⁿ * [1 1 1]. A94429

a(n) is the smallest nonnegative number whose American English name has the letter "n" in the n-th position. A164791

Numbers k such that A276086(k) is a multiple of k. A328387