Properties of the Number 18953

Eighteen Thousand Nine Hundred Fifty-Three

Basics

Value: 18952 → 18953 → 18954

Parity: odd

Prime: No

Previous Prime: 18947

Next Prime: 18959

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 11 × 1723

Divisors: 1, 11, 1723, 18953

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100101000001001

Octal: 45011

Duodecimal: AB75

Hexadecimal: 4a09

Square: 359216209

Square Root: 137.66989503882104

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

Numbers having no 0's and not more than one 1 in their representation in base 3. A188341

Largest integer not expressible as a nonnegative linear combination of n and n² + 1. A87908

a(n) is the number of multisets with n primes with which an n-gon with perimeter prime(n) can be formed. A376348

Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where column k is the expansion of B(x)^k, where B(x) is the g.f. of A381601. A381594

G.f. A(x) satisfies A(x) = 1/(1 - x·A(x)³ * A(x·A(x)³)³). A381601

a(n) = 26·n² - 1. A158551

Denominators of continued fraction convergents to sqrt(310). A41585

a(n) = 729·n - 1. A158395

Permanent of the n-th principal submatrix of A204016. A204233

a(n) = A175369(n²). A175370