Properties of the Number 19773

Nineteen Thousand Seven Hundred Seventy-Three

Basics

Value: 19772 → 19773 → 19774

Parity: odd

Prime: No

Previous Prime: 19763

Next Prime: 19777

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 13 ³

Divisors: 1, 3, 9, 13, 39, 117, 169, 507, 1521, 2197

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100110100111101

Octal: 46475

Duodecimal: B539

Hexadecimal: 4d3d

Square: 390971529

Square Root: 140.61649974309557

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

Numbers of the form p² * q³, where p,q are distinct primes. A143610

Numbers of the form (3ⁱ)*(13^j). A107364

a(n) is the largest integer k such that there is an integer m with exactly n nonunitary prime factors and m + A005117(i) is squarefree for 1 <= i <= k. A390138

a(1) = 2; a(n+1) = a(n)-th composite. A22450

a(n) = denominator(3*(3+(-1)ⁿ)/(n+1)³). A129196

Expansion of g.f. (1-4·x)/(1-13·x). A196663

Number of (w,x,y,z) with all terms in {1,...,n} and 3·w = x+y+z. A212069

Number of subsets of {1,2,...,n-8} without differences equal to 4 or 8. A224815

a(n) = 9·n³. A244728

T(n,k)=Number of nXk arrays containing k copies of 0..n-1 with no element 1 greater than its north, southwest or northwest neighbor modulo n and the upper left element equal to 0. A266878