Properties of the Number 30160

Thirty Thousand One Hundred Sixty

Basics

Value: 30159 → 30160 → 30161

Parity: even

Prime: No

Previous Prime: 30139

Next Prime: 30161

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 2 ⁴ × 5 × 13 × 29

Divisors: 1, 2, 4, 5, 8, 10, 13, 16, 20, 26

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111010111010000

Octal: 72720

Duodecimal: 15554

Hexadecimal: 75d0

Square: 909625600

Square Root: 173.6663467687393

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

The first n-fold (at least) intrinsically 2-palindromic number (in base ten). A171701

Table read by rows: T(n,k) = number of k-gons, k >= 3, formed inside a square with edge length 1 by the straight line segments mutually connecting all vertices and points that divide the sides into segments with lengths equal to the Farey series of order n = A006842(n,m)/A006843(n,m), m = 1..A005728(n). A358889

Number of ways to place 2 nonattacking bishops on an n X n board. A172123

T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 1 and 1 0 0 horizontally and 0 1 0 and 1 0 1 vertically. A208698

Rounded volume of a regular icosahedron with edge length n. A71402

The denominators of Zagier's modification of the Bernoulli numbers. A216923

a(n) = n*(n + 1)*(7·n + 5)/6. A304993

Numbers k such that e(k) > 1 and k == e(k) (mod λ(k)), where e(k) = A051903(k) is the maximal exponent in prime factorization of k. A327295

Positive integers n such that n² = (x⁴ - y⁴)*(z⁴ - t⁴) where the pairs of integers (x,y) and (z,t) are not proportional. A147854

Positive integers n such that n² = (x⁴ - y⁴)*(z⁴ - t⁴) where x>y and z>t are distinct pairs of integers with gcd(x,y)=gcd(z,t)=1. A147856