Properties of the Number 47887

Forty-Seven Thousand Eight Hundred Eighty-Seven

Basics

Value: 47886 → 47887 → 47888

Parity: odd

Prime: No

Previous Prime: 47881

Next Prime: 47903

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 7 × 6841

Divisors: 1, 7, 6841, 47887

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1011101100001111

Octal: 135417

Duodecimal: 23867

Hexadecimal: bb0f

Square: 2293164769

Square Root: 218.830985008979

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

Starts of runs of 4 consecutive Gray-code Niven numbers (A344341). A344344

Inverse Moebius transform of A000056. A350156

Starting position of the first occurrence of a string of 2ⁿ in the decimal expansion of π. A194351

E.g.f. satisfies: A(x) = ∑_n>=0 xⁿ * exp(n·x*A(n·x)) / n!. A217251

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 793", based on the 5-celled von Neumann neighborhood. A273566

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 969", based on the 5-celled von Neumann neighborhood. A273849

a(1) = 2; for n > 1, a(n) is the least positive integer not occurring earlier such that a(n-1)*a(n) shares no digit with either a(n-1) or a(n). A342442

Triangle of numbers T(n,k) = number of permutations of n things with longest increasing subsequence of length <=k (1<=k<=n). A47887