Properties of the Number 89890

Eighty-Nine Thousand Eight Hundred Ninety

Basics

Value: 89889 → 89890 → 89891

Parity: even

Prime: No

Previous Prime: 89867

Next Prime: 89891

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 2 × 5 × 89 × 101

Divisors: 1, 2, 5, 10, 89, 101, 178, 202, 445, 505

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101111100100010

Octal: 257442

Duodecimal: 4402A

Hexadecimal: 15f22

Square: 8080212100

Square Root: 299.81661061388843

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

Number of quadrilateral regions into which a figure made up of a row of n adjacent congruent rectangles is divided upon drawing diagonals of all possible rectangles. A324043

Triangle read by rows: T(n,k) (n>=1) gives the number of n-indecomposable polyominoes with k cells (k >= n). A125753

Triangle read by rows: T(n,k) (n>=1) gives the number of n-indecomposable polyominoes with k cells (k >= 1). A125761

Triangle read by rows: T(n,k) (n>=1) gives the number of n-indecomposable polyominoes with k cells (k >= 2n). A126743

Expansion of ∏_k>=1 (1 - prime(k)*x^k). A304791

Numbers k having at least two complementary pairs of divisors (q, p) and (p', q') such that k = p·q = p'*q' where the decimal digits of p' are the 9's complement of the decimal digits of p and the decimal digits of q' are the 9's complement of the decimal digits of q. A226587

Number of subsets of {1,.., n} containing exactly two squares. A89890

Number of nX5 0..4 arrays with each element·equal to the number its horizontal and vertical neighbors equal to 2,3,4,1,0 for x=0,1,2,3,4. A196986