Properties of the Number 15930

Fifteen Thousand Nine Hundred Thirty

Basics

Value: 15929 → 15930 → 15931

Parity: even

Prime: No

Previous Prime: 15923

Next Prime: 15937

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ³ × 5 × 59

Divisors: 1, 2, 3, 5, 6, 9, 10, 15, 18, 27

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 11111000111010

Octal: 37072

Duodecimal: 9276

Hexadecimal: 3e3a

Square: 253764900

Square Root: 126.21410380777577

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 such that every distinct consecutive subsequence has a different sum. A325676

T(n,k)=Number of nXk 0..4 arrays with each element·equal to the number of its horizontal and vertical neighbors equal to 4,4,0,2,1 for x=0,1,2,3,4. A197307

Number of points in N⁵ of norm <= n. A55404

Numbers m such that the GCD of the x's that satisfy σ(x) = m is 2. A241647

Table read by antidiagonals: T(w,n) is the number of n-step self avoiding walks on a 3D cubic lattice confined inside a tube of cross section 2w X 2w where the walk starts at the middle of the tube. A337400

Nine times hexagonal numbers: a(n) = 9·n*(2·n-1). A152994

Irregular table read by rows: Take a triangle with Pythagorean triple leg lengths with all diagonals drawn, as in A332978. Then T(n,k) = number of k-sided polygons in that figure for k >= 3 where the legs are divided into unit length parts. A333135

Dirichlet g.f.: ∏_k>=2 1 / (1 - k^-s)^binomial(k+3,4). A344204

a(n) = n*(3·n² - 5·n + 3). A226450

a(n) is the number of edges formed by n-secting the angles of a hexagon. A335735