Properties of the Number 19627

Nineteen Thousand Six Hundred Twenty-Seven

Basics

Value: 19626 → 19627 → 19628

Parity: odd

Prime: No

Previous Prime: 19609

Next Prime: 19661

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 19 × 1033

Divisors: 1, 19, 1033, 19627

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100110010101011

Octal: 46253

Duodecimal: B437

Hexadecimal: 4cab

Square: 385219129

Square Root: 140.09639538546307

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

To get next term, multiply by 17, add 1 and discard any prime factors < 17. A57216

Numerator of ∑_k=1..n k²*H_n+k where H_m = ∑_i=1..m. A102720

Starting positions of strings of 3 1's in the decimal expansion of π. A50209

The five digits of a(n) and their four successive absolute first differences are all distinct. A365257

Denominator of ∑_k=1..n k²*H_n+k where H_m = ∑_i=1..m 1/i. A144653

Number of n X 6 0..2 arrays with horizontal differences mod 3 never 1, vertical differences mod 3 never -1, rows lexicographically nondecreasing, and columns lexicographically nonincreasing. A229426

Decimal expansion of π*e/19. A19627