Properties of the Number 19300

Nineteen Thousand Three Hundred

Basics

Value: 19299 → 19300 → 19301

Parity: even

Prime: No

Previous Prime: 19289

Next Prime: 19301

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 5 ² × 193

Divisors: 1, 2, 4, 5, 10, 20, 25, 50, 100, 193

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100101101100100

Octal: 45544

Duodecimal: B204

Hexadecimal: 4b64

Square: 372490000

Square Root: 138.92443989449805

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

T(n,k)=number of distinct solutions of sum{i=1..k}(x(2i-1)*x(2i)) = 1 (mod n), with x() only in 1..n-1. A180793

a(n) = n*(n+1)*(8·n + 1)/6. A132124

Irregular table read by rows, T(n, k) is the rank of the k-th Seidel permutation of {1,...,n}, permutations sorted in lexicographical order. A347600

T(n,k)=Number of nXk 0..3 arrays with every row having the same least squares slope fit to a straight line, and every column the same least squares slope fit to a straight line, with a single point array taken as having zero slope. A223066

Practical numbers z such that z² = x² + y² for some practical numbers·and y with gcd(x,y,z) = 4. A294112

For any k, the cumulative sum a(1) + a(2) + a(3) + ... + a(k) shares at least five digits with a(k). Lexicographically first sequence of positive integers without duplicate terms having this property. A326640

Card-matching numbers (Dinner-Diner matching numbers). A59062

a(n) = s(1)*t(n) + s(2)*t(n-1) + ... + s(k)*t(n-k+1), where k = floor(n/2), s = natural numbers, t = odd natural numbers. A24862

Expansion of ∏_k>=1 ((1 - k·x^k)/(1 + k·x^k)). A292317

Sum of the areas of all r X s rectangles such that r < s, r + s = 2n and (s - r) | (s·r). A333754