Properties of the Number 18960

Eighteen Thousand Nine Hundred Sixty

Basics

Value: 18959 → 18960 → 18961

Parity: even

Prime: No

Previous Prime: 18959

Next Prime: 18973

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 ⁴ × 3 × 5 × 79

Divisors: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100101000010000

Octal: 45020

Duodecimal: AB80

Hexadecimal: 4a10

Square: 359481600

Square Root: 137.69531582446805

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

a(n) = ∑_j=1..n j·prime(j). A14285

T(n,k)=Number of nXk binary arrays without the pattern 0 0 1 diagonally, antidiagonally or horizontally. A189264

Triangle read by rows: coefficients of polynomials in ∑_{k = 0..t} kⁿ * binomial(t,k). A209849

Coefficients of the ω polynomials of order 2, triangle T(n,k) read by rows with 0<=k<=n. A318146

Composite numbers with properties that its digits (which may appear with multiplicity) may not appear in any of its factors (wherein the digits may also appear with multiplicity) and the combined digits of the product and the factors must have at least one of each of the ten digits. A370972

Triangle read by rows: T(0,0) = 1, T(n,k) = ∑_{j=max(0,1-k)..n-k} (2^j)*(binomial(k+j,1+j) + binomial(k+j+1,1+j))*T(n-1,k-1+j). A85734

T(n, k) = [x^k] (2·n)! [z^2·n] 1/cos(z)^x, triangle read by rows, for 0 <= k <= n. A88874

Triangle read by rows: T(n,k) is the number of partitions of the set {1,2,...,n}, having exactly k blocks consisting of entries of the same parity (0<=k<=n). A124424

Indices of the start of 10 successive distinct digits in the decimal expansion of π. A258157

Numbers equal to the sum of three oblong numbers in arithmetic progression. A292314