Properties of the Number 47945

Forty-Seven Thousand Nine Hundred Forty-Five

Basics

Value: 47944 → 47945 → 47946

Parity: odd

Prime: No

Previous Prime: 47939

Next Prime: 47947

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 5 × 43 × 223

Divisors: 1, 5, 43, 215, 223, 1115, 9589, 47945

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1011101101001001

Octal: 135511

Duodecimal: 238B5

Hexadecimal: bb49

Square: 2298723025

Square Root: 218.963467272511

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

Composite squarefree numbers n such that p(i)-7 divides n+7, where p(i) are the prime factors of n. A225707

Denominators of continued fraction convergents to sqrt(789). A42521

Number of different values assumed by a/b+c/d as a,b,c,d range between 1 and n. A119868

Number of 2Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of the elements above it or zero plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4. A241398

O.g.f. A(x) satisfies: 0 = [xⁿ] exp( n² * Integral 1/A(x) dx ) / A(x), for n > 0. A305144

Number of 10-colorings of an n X n grid, up to rotational symmetry. A47945