Properties of the Number 51204

Fifty-One Thousand Two Hundred Four

Basics

Value: 51203 → 51204 → 51205

Parity: even

Prime: No

Previous Prime: 51203

Next Prime: 51217

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 2 ² × 3 × 17 × 251

Divisors: 1, 2, 3, 4, 6, 12, 17, 34, 51, 68

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1100100000000100

Octal: 144004

Duodecimal: 25770

Hexadecimal: c804

Square: 2621849616

Square Root: 226.2830086418333

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

a(n) = ∑_{k=0..floor(3·n/8)} binomial(k,3·n-8·k). A392272

Numbers of words on alphabet {0,1,...,8} with no subwords ii, where i is from {0,1,2}. A254657

a(n) = ∑_{k=0..floor(n/2)} binomial(k+3,4·n-8·k+3). A390040

Number of pairs of orientable necklaces with n beads and up to 4 colors; i.e., turning the necklace over does not leave it unchanged. The turned-over necklace is not included in the count. A278640

Numbers that can be written as the product of two divisors greater than 1 such that the number is contained in the string concatenation of the divisors. A355790

Expansion of x/(1 - 4·x + 3·x² - 2·x³). A175005

Numbers n such that n and n+1 both have 24 divisors. A274362

Numbers k such that A360327(k) = A360327(k+1) > 1. A360358

Numbers k such that k and k+1 both have the prime signature (2,1,1,1) (A189982). A336658

Nonnegative numbers of the form x²-2^y. A51204