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Properties of the Number 7047

Seven Thousand Forty-Seven

Basics

Value: 7046 → 7047 → 7048

Parity: odd

Prime: No

Previous Prime: 7043

Next Prime: 7057

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 5 × 29

Divisors: 1, 3, 9, 27, 29, 81, 87, 243, 261, 783

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 1101110000111

Octal: 15607

Duodecimal: 40B3

Hexadecimal: 1b87

Square: 49660209

Square Root: 83.94641147779933

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

Generalized 22-gonal (or icosidigonal) numbers: m*(10·m - 9) with m = 0, +1, -1, +2, -2, +3, -3, ... A303299
Triangular array T(n,k), read by rows: coefficients of strong divisibility sequence of polynomials p(1,x) = 1, p(2,x) = 2 + 5·x, p(n,x) = u·p(n-1,x) + v·p(n-2,x) for n >= 3, where u = p(2,x), v = 1 - 2·x - x2. A367299
Numbers whose prime indices have more than one permutation with all equal run-sums. A383015
22-gonal numbers: a(n) = n*(10·n-9). A51874
Composites whose prime factorization in base 11 is an anagram of the number in base 11. A260054
a(n) = a(n-1) + a(m) for n >= 4, where m = 2p+1 + 2 - n and p is the unique integer such that 2p < n - 1 <= 2p+1, starting with a(1) = 1, a(2) = 3, and a(3) = 2. A50061
a(n) = 3n*A077985(n-1), A077985(-1) = 0. Irrational parts of the integers in Q(sqrt(2)) giving the length of a Lévy C-curve variant at iteration step n. A251733
Number of connected antichains of multisets with multiset-join a strongly normal multiset of size n. A317076
Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 78", based on the 5-celled von Neumann neighborhood. A278789
a(n) = (8·n+1)*(8·n+7). A1533