Properties of the Number 19000

Nineteen Thousand

Basics

Value: 18999 → 19000 → 19001

Parity: even

Prime: No

Previous Prime: 18979

Next Prime: 19001

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 2 ³ × 5 ³ × 19

Divisors: 1, 2, 4, 5, 8, 10, 19, 20, 25, 38

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 100101000111000

Octal: 45070

Duodecimal: ABB4

Hexadecimal: 4a38

Square: 361000000

Square Root: 137.84048752090223

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

Multiples of 19 containing a 19 in their decimal representation. A121039

Numbers of the form p³*q³*r where p, q, and r are prime. A179688

Number of n step walks (each step +-1 starting from 0) which are never more than 4 or less than -4. A216212

Expansion of (1+x)*(1+2·x)*(1-x)/(1-5·x²+5·x⁴). A217777

Numbers that are both a sum and a difference of two positive cubes. A225908

Maximum value taken on by f(P) = ∑_i=1..n p(i)*p(n+1-i) as {p(1),p(2),...,p(n)} ranges over all permutations P of {1,2,3,...,n}. A87035

Numbers with at least two 3s in their prime signature. A109399

a(n) = n*(n + 1)*(4·n - 1)/3. A268684

Numbers n such that sum of the digits of n is >= the sum of the digits of n⁴. A64210

Integers that can be generated with a C/C++ expression that is shorter than their decimal representation. A168650