Properties of the Number 51200

Fifty-One Thousand Two Hundred

Basics

Value: 51199 → 51200 → 51201

Parity: even

Prime: No

Previous Prime: 51199

Next Prime: 51203

Digit Sum: 8

Digital Root: 8

Palindrome: No

Factorization: 2 ¹¹ × 5 ²

Divisors: 1, 2, 4, 5, 8, 10, 16, 20, 25, 32

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1100100000000000

Octal: 144000

Duodecimal: 25768

Hexadecimal: c800

Square: 2621440000

Square Root: 226.27416997969522

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: Yes

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

13-almost primes (generalization of semiprimes). A69274

Numbers of form 8ⁱ*10^j, with i, j >= 0. A25634

Expansion of (1 + 2·x)/(1 - 2·x)³. A14477

T(n,k)=Number of length n+6 0..k arrays with no seven consecutive terms having five times the sum of any two elements equal to two times the sum of the remaining five. A249212

T(n,k)=Number of length n+6 0..k arrays with no seven consecutive terms having six times any element equal to the sum of the remaining six. A249319

Triangle read by rows: T(n,k) is the number of partitions of the set {1,2,...,n} having exactly k blocks that contain both odd and even entries (0<=k<=floor(n/2)). A124418

Paradigm shift sequence for (5,2) production scheme with replacement. A246100

Numbers that can be written as k/d(k) in four or more ways, where d(k) = number of divisors of k. A51346

Row sums of A128134. A128135

Triangle of numbers related to the spectrum of the hydrogen (H) atom. A119937