Properties of the Number 47380

Forty-Seven Thousand Three Hundred Eighty

Basics

Value: 47379 → 47380 → 47381

Parity: even

Prime: No

Previous Prime: 47363

Next Prime: 47381

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 5 × 23 × 103

Divisors: 1, 2, 4, 5, 10, 20, 23, 46, 92, 103

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1011100100010100

Octal: 134424

Duodecimal: 23504

Hexadecimal: b914

Square: 2244864400

Square Root: 217.66947420343533

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

Triangle read by rows: T(n,k) is the number of 2-compositions of n having k columns with an even sum (0<=k<=floor(n/2)). A181327

Triangle of coefficients T(n,k) of yⁿ in ∏_k=0..n-2 (n + (2·n + k)*y + n·y²), as read by rows of terms k = 0..2·n-2, for n >= 1. A324958

Numbers k such that the sum of first k Catalan numbers is a prime. A134775

G.f.: 1 + 1²*x/(1 + 2²*x/(1 + 3²*x/(1 + 4²*x/(1 + 5²*x/(1 + ...))))). A343429

Numbers that are congruent to {1, 2, 4, 5} mod 7. A47380

Number of tilings of a 4 X n rectangle using monominoes and trominoes of any shape. A270064