Properties of the Number 19245

Nineteen Thousand Two Hundred Forty-Five

Basics

Value: 19244 → 19245 → 19246

Parity: odd

Prime: No

Previous Prime: 19237

Next Prime: 19249

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 1283

Divisors: 1, 3, 5, 15, 1283, 3849, 6415, 19245

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100101100101101

Octal: 45455

Duodecimal: B179

Hexadecimal: 4b2d

Square: 370370025

Square Root: 138.72634933566152

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

Number of partitions of n having standard deviation σ > 4. A238656

Number of different positions in which a square with side length k, 1 <= k <= n - floor(n/3), can be placed within a bi-symmetric triangle of 1 X 1 squares of height n. A241526

Triangle read by rows: T(n,k) is the number of unoriented series-parallel networks whose multigraph has n edges and k interior vertices, 0 <= k < n. A339285

Expansion of a modular function for Gamma₀(21). A2511

Numbers n such that 6n and 12n are both the average of twin prime pairs. A177680

Numbers k such that k!4 + 2¹⁰ is prime, where k!4 = k!!!! is the quadruple factorial number (A007662). A291351

Integer part of square root of the reciprocal of a number multiplied by 10 to the power of the integer part of the square root of the number. A89245

Denominators of an Egyptian fraction for 1/Sqrt[27] = 0.19245... A145001

Largest member of the n-th row of the triangular triangle (A093445). A93446

Smallest primes p = p(k) with (p(k)+p(k+1)+p(k+2))/15 an integer. A168556