Properties of the Number 19118

Nineteen Thousand One Hundred Eighteen

Basics

Value: 19117 → 19118 → 19119

Parity: even

Prime: No

Previous Prime: 19087

Next Prime: 19121

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 11 ² × 79

Divisors: 1, 2, 11, 22, 79, 121, 158, 242, 869, 1738

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100101010101110

Octal: 45256

Duodecimal: B092

Hexadecimal: 4aae

Square: 365497924

Square Root: 138.2678559897419

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

The number of even prime gaps g, satisfying g == 4 (mod 6), out of the first 2ⁿ even prime gaps. A341532

Total number of parts of multiplicity 3 in all partitions of n. A117524

a(n) = 15n² + 13n³. A85377

a(1)=1, then a(n) = smallest number whose square is larger than 2*(a(n-1))². A175539

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 1, 1), (0, 1, -1), (1, 0, 1), (1, 1, -1)}. A149477

Partial sums of A061262. A176661

Number of ways to place 6 nonattacking queens on an n X n board. A176186

Array read by descending antidiagonals: A(n,k) is the number of achiral colorings of the facets (or vertices) of a regular n-dimensional simplex using up to k colors. A325001

Number of (n+2)X(3+2) 0..2 arrays with every consecutive three elements in every row, column and nw-se diagonal having exactly two distinct values, and new values 0 upwards introduced in row major order. A252947

Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite EPI = Epistilbite Ca3[Al6Si18O48].16H2O starting with a T2 atom. A19118