Properties of the Number 47220

Forty-Seven Thousand Two Hundred Twenty

Basics

Value: 47219 → 47220 → 47221

Parity: even

Prime: No

Previous Prime: 47207

Next Prime: 47221

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 ² × 3 × 5 × 787

Divisors: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1011100001110100

Octal: 134164

Duodecimal: 233B0

Hexadecimal: b874

Square: 2229728400

Square Root: 217.30163368000711

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

T(n,k)=Number of nXk 0..2 arrays x(i,j) with each element horizontally or vertically next to at least one element with value (x(i,j)+1) mod 3 and at least one element with value (x(i,j)-1) mod 3, and upper left element zero. A230819

a(n) = 6*(n - 1)*(81·n - 104) for n >= 1. A304837

Number of nX3 0..2 arrays x(i,j) with each element horizontally or vertically next to at least one element with value (x(i,j)+1) mod 3 and at least one element with value (x(i,j)-1) mod 3, and upper left element zero. A230814

Numbers that are congruent to {0, 1, 3} mod 5. A47220

Array read by antidiagonals: T(n,m) = 2ⁿ*(1+2ⁿ)^m; n,m >= 0. A264872

Number of nX5 0..1 arrays with every element unequal to 1, 2, 3, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero. A316950