Properties of the Number 18926

Eighteen Thousand Nine Hundred Twenty-Six

Basics

Value: 18925 → 18926 → 18927

Parity: even

Prime: No

Previous Prime: 18919

Next Prime: 18947

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 × 9463

Divisors: 1, 2, 9463, 18926

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100100111101110

Octal: 44756

Duodecimal: AB52

Hexadecimal: 49ee

Square: 358193476

Square Root: 137.57179943578552

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) = n³ - n² - n - 1. A83074

Convolution sequence: this sequence convolved with A000041 gives powers of 2, (A000079). A152537

Expansion of e.g.f. exp(2*(exp(x) - 1 + x)). A355247

Where records occur in A039996. A178597

Partial sums of A006206. A1461

The number of pure inverting compositions of n. A178841

Indices of prime Perrin numbers; values of n such that A001608(n) is prime. A112881

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 974", based on the 5-celled von Neumann neighborhood. A273853

Binomial centered tridigonal matrices as a triangular sequence: t(n,m.d)=If[n + m - 1 == d, binomial[d - 1, n - 1], If[n + m == d, -1, If[n + m - 2 == d, -1, 0]]]. A124030

First appearance of n in A039996: Primes embedded in prime(n). A179908