Properties of the Number 19419

Nineteen Thousand Four Hundred Nineteen

Basics

Value: 19418 → 19419 → 19420

Parity: odd

Prime: No

Previous Prime: 19417

Next Prime: 19421

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 6473

Divisors: 1, 3, 6473, 19419

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100101111011011

Octal: 45733

Duodecimal: B2A3

Hexadecimal: 4bdb

Square: 377097561

Square Root: 139.35207210515387

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

Array read by antidiagonals: T(n,k) is the number of unrooted 3-connected triangulations of a disk with n interior nodes and k nodes on the boundary, n >= 1, k >= 3. A342053

Expansion of x*(-1+4·x)/((x-1)*(2·x-1)*(4·x²+4·x-1)). A110052

a(n) = ∑_i=1..n (prime(i+1)-prime(i))*prime(n+1-i). A343531

Ascending sequence of numbers such that the sum of any two distinct elements (even + odd) is a prime number. A180743

Number of distinct solutions of sum{i=1..3}(x(2i-1)*x(2i)) = 1 (mod n), with x() in 0..n-1. A180805

Expansion of 1 / ( (1 - 8·x⁴) * (1 - x/(1 - 8·x⁴)^1/4) ). A373627

Positions of remoteness 3 in Beans-Don't-Talk. A5695

Primes with primitive root 97. A19419