Properties of the Number 19700

Nineteen Thousand Seven Hundred

Basics

Value: 19699 → 19700 → 19701

Parity: even

Prime: No

Previous Prime: 19699

Next Prime: 19709

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 5 ² × 197

Divisors: 1, 2, 4, 5, 10, 20, 25, 50, 100, 197

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100110011110100

Octal: 46364

Duodecimal: B498

Hexadecimal: 4cf4

Square: 388090000

Square Root: 140.356688476182

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

(Largest) diagonal of the Zorach additive triangle A035312. A35313

T(n,k)=Number of nXk 0..1 arrays with no element equal to more than three of its king-move neighbors and with new values introduced in order 0 sequentially upwards. A281344

Numbers that are the sum of five fourth powers in three or more ways. A344243

Numbers that are the sum of five fourth powers in exactly three ways. A344244

Trajectory of 397 under the map A340008: n -> n/2 if n is even, n-> n² - 1 if n is an odd prime, otherwise n -> n - 1. A340419

Sum of numerator and denominator in a rational approximation j/k of q = log(2)/log(3), such that q - j/k is a new minimum, i.e., q is approximated from below. A355514

Number of different strings of length n+4 obtained from "123...n" by iteratively duplicating any substring. A137741

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

Expansion of ∏_m>=1 (1+x^m)¹⁰. A22575

a(n) = n³ + 17. A84379