Properties of the Number 47000

Forty-Seven Thousand

Basics

Value: 46999 → 47000 → 47001

Parity: even

Prime: No

Previous Prime: 46997

Next Prime: 47017

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 ³ × 5 ³ × 47

Divisors: 1, 2, 4, 5, 8, 10, 20, 25, 40, 47

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1011011110011000

Octal: 133630

Duodecimal: 23248

Hexadecimal: b798

Square: 2209000000

Square Root: 216.79483388678798

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

Boolean-Chain Quilt Numbers: Square table of the number of ASM quilts of type B_n X C_k read down antidiagonals, where B_n is the Boolean lattice on an n-set and C_k is a chain of length k with k+1 elements. A374820

Antichain-Boolean Quilt Numbers: Square table of the number of ASM quilts of type B_n x A₂(j) read down antidiagonals, where B_n is the Boolean lattice and A₂(j) is the rank 2 poset with a unique minimal and maximal element and j atoms. A374821

Triangle read by rows, with T(n,k) giving the number of n X n Boolean matrices with exactly k ones having at least one zero row and at least one zero column. A392483

Numbers k such that k and k² use only the digits 0, 2, 4, 7 and 9. A136907

Numbers whose square has more than 2/3 of its digits the same. A60813

Semiprimes with semiprime digits (digits 4, 6, 9 only). A107342

Array T read by diagonals; T(h,k)=number of paths consisting of steps from (0,0) to (h,k) such that each step has length 1 directed up or right and no step touches the line y=x/2 except at the endpoints. A47000

Continued fraction for sqrt(50) = 5·sqrt(2). A40042

Numbers which are the sum of two positive cubes and divisible by 17. A99178

Primes which are a concatenation of some permutation of the first 5 primes. A177275