Properties of the Number -18709

Eighteen Thousand Seven Hundred Nine

Basics

Value: -18710 → -18709 → -18708

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 53 × 353

Divisors: 1, 53, 353, 18709

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: -100100100010101

Octal: -44425

Duodecimal: -A9B1

Hexadecimal: -4915

Square: 350026681

Square Root: 136.7808466123821

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 numbers in row n of the array at A243928. A243930

Triangle read by rows: T(n,k) is the number of rooted ordered trees with node weights summing to n, where the root has weight 0, all internal nodes have weight 1, and leaf nodes have weights in {1,...,k}. A384685

Numbers in ascending order formed by using all the digits of the next n numbers. A81991

Triangle T(n,k) read by rows: ∑_{k=0..binomial(n,2)} T(n,k)*q^k = n!*∑_π faq(n,q)/∏_i=1..n e(i)!*faq(i,q)^e(i), where π runs over all nonnegative integer solutions to e(1) + 2·e(2) + ... + n·e(n) = n and faq(i,q) = ∏_j=1..i (q^j-1)/(q-1), i = 1..n. A152474

Numbers k such that the continued fraction for sqrt(k) has period 35. A20374

Averages of four consecutive cubes. A173965