Properties of the Number 18414

Eighteen Thousand Four Hundred Fourteen

Basics

Value: 18413 → 18414 → 18415

Parity: even

Prime: No

Previous Prime: 18413

Next Prime: 18427

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ³ × 11 × 31

Divisors: 1, 2, 3, 6, 9, 11, 18, 22, 27, 31

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100011111101110

Octal: 43756

Duodecimal: A7A6

Hexadecimal: 47ee

Square: 339075396

Square Root: 135.6981945347837

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 k such that σ(k+1) divides σ(k), where σ(k) is the sum of positive divisors of k. A58073

Number of totally ramified extensions over Q₂ with degree n in the algebraic closure of Q₂. A100979

Numbers k such that σ(k) = 2*σ(k+1). A163193

Record high values in A245340. A370956

a(n) = n*(19·n + 1)/2. A22277

Sum of orders of all 2 X 2 matrices with entries mod n. A6045

Number of nX3 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 0 and 0 1 1 vertically. A207903

Numbers k such that gcd(σ(k), σ(k+1)) > k. A66025

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 929", based on the 5-celled von Neumann neighborhood. A273781

Least K such that K·p(n)#-1 is the first of twin primes and 2*(K·p(n)#-1)+1 is prime, so K·p(n)#-1 is the first of twin primes and a Sophie Germain prime. A117848