Properties of the Number 19100

Nineteen Thousand One Hundred

Basics

Value: 19099 → 19100 → 19101

Parity: even

Prime: No

Previous Prime: 19087

Next Prime: 19121

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 5 ² × 191

Divisors: 1, 2, 4, 5, 10, 20, 25, 50, 100, 191

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100101010011100

Octal: 45234

Duodecimal: B078

Hexadecimal: 4a9c

Square: 364810000

Square Root: 138.20274961085252

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

Number of integer partitions of n without choosable initial intervals. A387118

Non-palindromic numbers n such that n·reverse(n) is a square and n and reverse(n) do not have the same number of digits. A322835

Sum of the first n twin prime pairs. A86169

Number of 3X3 0..n arrays with each 2X2 subblock determinant nonzero and the array of 2X2 subblock determinants symmetric under 90 degree rotation. A187529

Number of ways to place 6 nonattacking grasshoppers on a toroidal chessboard of size n·n. A190401

a(n+2) = 7·a(n+1) - 7·a(n) - 9·n; a(n+4) = 9·a(n+3) - 22·a(n+2) + 21·a(n+1) - 7·a(n). A30429

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 526", based on the 5-celled von Neumann neighborhood. A272744

Numbers m such that m² + 3^k is prime for k = 1, 2, 3. A177173

Number of cycles the reduced complex Collatz function using 1 + (2n-1)i takes to hit 1 + i, or 0 if this never happens. A224067

Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite CON = CIT-1 H2[B2Si54O112] starting with a T4 atom. A19100