Properties of the Number 8109

Eight Thousand One Hundred Nine

Basics

Value: 8108 → 8109 → 8110

Parity: odd

Prime: No

Previous Prime: 8101

Next Prime: 8111

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 17 × 53

Divisors: 1, 3, 9, 17, 51, 53, 153, 159, 477, 901

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 1111110101101

Octal: 17655

Duodecimal: 4839

Hexadecimal: 1fad

Square: 65755881

Square Root: 90.0499861188218

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

Eventual period of a single cell in rule 110 cellular automaton in a cyclic universe of width n. A180001

Dispersion of A047204, (numbers >1 and congruent to 3 or 4 mod 5), by antidiagonals. A191731

Number of integer partitions of n whose multiset of multiplicities has integer mean. A360069

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock summing to 4. A183632

Numbers n such that nextprime(n³)-prevprime(n³) = 4. A90121

-3-Knödel numbers. A225507

T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with no 2X2 subblock having zero or two 1s. A251219

a(n) = 100·n² + n. A55438

a(n) is the number of positive Euler permutations of order n. A347601

Let A(n) = #{(i,j): i² + j² <= n}, V(n) = π*n, P(n) = A(n) - V(n); A000099 gives values of n where |P(n)| sets a new record; sequence gives A(A000099(n)). A323