Properties of the Number 18799

Eighteen Thousand Seven Hundred Ninety-Nine

Basics

Value: 18798 → 18799 → 18800

Parity: odd

Prime: No

Previous Prime: 18797

Next Prime: 18803

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 11 × 1709

Divisors: 1, 11, 1709, 18799

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100100101101111

Octal: 44557

Duodecimal: AA67

Hexadecimal: 496f

Square: 353402401

Square Root: 137.1094453347398

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

Partial sums of A299274. A299275

Number of partitions p of n such that (number of numbers of the form 5k + 4 in p) is a part of p. A241553

Subprimorials: inverse binomial transform of primorials (A002110). A121572

The number of primes of the form i² + j⁴ (A028916) <= 2ⁿ. A226498

a(n) is the least·such that the n values x+0, x+6, x+12, ..., x+6*(n-1) are all products of exactly two primes (i.e., semiprimes). A91016

a(n) = 25·n²/2 - 11·n/2 + 1. A383465

Balanced ternary Keith numbers. A188380

The Wiener index of the double-comb graph \/_\/_\/...\/_\/ with 3n (n>=1) nodes. The Wiener index of a connected graph is the sum of the distances between all unordered pairs of vertices in the graph. A192025

Odd integers k such that for every m >= 1 the numbers k·4^m - 1 have at least three prime factors, not necessarily distinct, and k·4^m - 1 has at least two-element covering set. A233552

Number k such that k² + 1 = p·q*r where p,q,r are distinct primes and the sum p+q+r is a perfect square. A261529