Properties of the Number 47800

Forty-Seven Thousand Eight Hundred

Basics

Value: 47799 → 47800 → 47801

Parity: even

Prime: No

Previous Prime: 47797

Next Prime: 47807

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 ³ × 5 ² × 239

Divisors: 1, 2, 4, 5, 8, 10, 20, 25, 40, 50

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1011101010111000

Octal: 135270

Duodecimal: 237B4

Hexadecimal: bab8

Square: 2284840000

Square Root: 218.63211109075445

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) is the sum of squares of the first n positive integers congruent to 2 mod 3. A24394

If n mod 2 = 0 then a(n) = n⁴/4 - 2·n² + 3·n; otherwise, a(n) = n⁴/4 - 2·n² + 3·n - 5/4. A64835

a(n) = [xⁿ] 1/(1+n·x) * ∏_j=2..n 1/(1-x^j). A292567

Numbers k such that k and k² use only the digits 0, 2, 4, 7 and 8. A136906

Numbers k such that 337·2^k+1 is prime. A322961

Number of different values of i² + j² for i,j in [0, n]. A47800