Properties of the Number 13979

Thirteen Thousand Nine Hundred Seventy-Nine

Basics

Value: 13978 → 13979 → 13980

Parity: odd

Prime: No

Previous Prime: 13967

Next Prime: 13997

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 7 × 1997

Divisors: 1, 7, 1997, 13979

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11011010011011

Octal: 33233

Duodecimal: 810B

Hexadecimal: 369b

Square: 195412441

Square Root: 118.23282116231516

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

Number of compositions of n with all adjacent parts (x, y) satisfying x >= 2y or y = 2x. A342335

Number of symmetrical planar partitions of n (planar partitions (A000219) that when regarded as 3-D objects have just one symmetry plane). A784

a(n) = 10000·log₁₀(n) rounded down. A4228

Indices k such that 15 plus the k-th triangular number is a perfect square. A154145

a(n) = 10000·log₁₀(n) rounded to the nearest integer. A4229

Spiro-tribonacci numbers: a(n) = sum of three previous terms that are nearest when terms arranged in a spiral. A92360

Numbers having four 3's in base 8. A43436

Number of even parts in the partitions of n into 6 parts. A309551

Expansion of 1/(1 - x² - x³ - x⁴) = 1/((1 + x)*(1 - x - x³)). A13979

Number of 5Xn 0..1 arrays with every element equal to 0, 1, 3 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A302638