Properties of the Number 8889

Eight Thousand Eight Hundred Eighty-Nine

Basics

Value: 8888 → 8889 → 8890

Parity: odd

Prime: No

Previous Prime: 8887

Next Prime: 8893

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 3 × 2963

Divisors: 1, 3, 2963, 8889

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001010111001

Octal: 21271

Duodecimal: 5189

Hexadecimal: 22b9

Square: 79014321

Square Root: 94.28149341201592

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

Start with 61; to get the next term, divide by the smallest prime factor < 17 if it exists, else multiply by 17 and add 1. A57534

Total number of vertices in graph formed by the straight line segments connecting the edges of an equilateral triangle with the n-1 points resulting from a subdivision of the sides into n equal pieces, counting coinciding intersection points only once. A331782

a(0)=1, a(n) = a(n-1) + 8·10^n-1. A59482

Numbers with rounded up arithmetic mean of digits = 9. A178369

G.f.: A(x) = ∑_n>=0 xⁿ/(1-x)^n². A178325

For k in {2,3,...,9} define a sequence as follows: a(0)=0; for n>=0, a(n+1)=a(n)+1, unless a(n) ends in k, in which case a(n+1) is obtained by replacing the last digit of a(n) with the digit(s) of k². This is k(9). A237346

Numbers which have only digits 8 and 9 in base 10. A256341

Numbers whose smallest decimal digit is 8. A284069

Number of distinct circles that can be constructed from an n X n square grid of points when each pair of points is connected by a circle and the points lie at the ends of a diameter of the circle. A360350

p-INVERT of (1,0,0,1,0,0,1,0,0,...), where p(S) = 1 - 2 S - S². A290616