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Properties of the Number 18636

Eighteen Thousand Six Hundred Thirty-Six

Basics

Value: 18635 → 18636 → 18637

Parity: even

Prime: No

Previous Prime: 18617

Next Prime: 18637

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 2 × 3 × 1553

Divisors: 1, 2, 3, 4, 6, 12, 1553, 3106, 4659, 6212

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100100011001100

Octal: 44314

Duodecimal: A950

Hexadecimal: 48cc

Square: 347300496

Square Root: 136.51373557265217

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

T(n,k)=Number of length n+5 0..k arrays with some disjoint triples in each consecutive six terms having the same sum. A248068
Antidiagonal-sums of the array A377038(n,k) = n-th term of k-th differences of squarefree numbers (A005117). A377039
Triangle T(n,k) of the numbers of nodes in all non-extendable (complete) non-self-adjacent simple paths within a square lattice bounded by rectangles with nodal dimensions n and k, n >= k >= 2. A214397
The number of different classes of 2-dimensional convex lattice polytopes having volume n/2 up to unimodular equivalence. A187015
Convolution triangle, read by rows, where diagonals are successive self-convolutions of A118351. A118354
Number of integer partitions of n whose multiplicities appear with distinct multiplicities. A325329
Number of 6 X 6 binary matrices with n ones, with no zero rows or columns, up to row and column permutation. A56037
G.f.: exp( ∑n>=1 A051064(n)*3A051064(n)*xn/n ) where A051064(n) equals the 3-adic valuation of 3n. A183038
Number T(m,n) of series-reduced free trees with n nodes of which exactly m >= 3 are leaves, m+1 <= n <= 2m-2. A271205
a(n) = floor(11n/9n). A94997