Properties of the Number 19994

Nineteen Thousand Nine Hundred Ninety-Four

Basics

Value: 19993 → 19994 → 19995

Parity: even

Prime: No

Previous Prime: 19993

Next Prime: 19997

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 2 × 13 × 769

Divisors: 1, 2, 13, 26, 769, 1538, 9997, 19994

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100111000011010

Octal: 47032

Duodecimal: B6A2

Hexadecimal: 4e1a

Square: 399760036

Square Root: 141.40014144264495

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

a(n) = 25·n² - 36·n + 13. A154355

Denominators of convergents to π by Farey fractions. A63673

Numbers k such that R(k+6) = 2. A86946

a(n) = (5·n + 1)² + 4·n + 1. A7533

a(n) = a(n-1) + floor((a(n-2) + a(n-3))/2), with a(n)=1 for n < 3. A214041

Number of palindromic compositions of n into prime parts. A276420

Numbers n with the property that k·n and (k+1)*n have a common nonzero digit for all k. A308466

Divide the positive integers into subsets of lengths given by successive primes. a(n) is the sum of primes contained in the n-th subset. A344718

Coordination sequence for MgNi2, Position Ni2. A9932

Number of nX2 0..7 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other. A201095