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Properties of the Number 18150

Eighteen Thousand One Hundred Fifty

Basics

Value: 18149 → 18150 → 18151

Parity: even

Prime: No

Previous Prime: 18149

Next Prime: 18169

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 5 2 × 11 2

Divisors: 1, 2, 3, 5, 6, 10, 11, 15, 22, 25

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100011011100110

Octal: 43346

Duodecimal: A606

Hexadecimal: 46e6

Square: 329422500

Square Root: 134.7219358530748

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 of numbers T(n,k) = k!*Stirling2(n,k) read by rows (n >= 1, 1 <= k <= n). A19538
Triangle of numbers T(n,k) = k!*Stirling2(n,k) = A000142(k)*A048993(n,k) read by rows, T(n, k) for 0 <= k <= n. A131689
a(n) = 3n - 3·2n + 3. A1117
Stirling numbers of first kind, s(n+3, n), negated. A1303
T(n, k) = ∑j=0..n-k (-1)j*binomial(n - k + 1, j)*(n - k + 1 - j)n. Triangle read by rows, T(n, k) for 1 <= k <= n. A90582
Number of sublattices of index n in generic 4-dimensional lattice. A38991
Array T(m,n) read by antidiagonals: T(m,n) = number of ways of 3-coloring an m X n grid (m >= 1, n >= 1). A78099
Number of palindromes of length n using exactly three different symbols. A56454
Coefficients of the signed Fubini polynomials in ascending order, Fn(x) = ∑k=0..n (-1)n*Stirling2(n,k)*k!*(-x)k. A278075
Unsigned Stirling numbers of the first kind s(n,8). A243569