Properties of the Number 99807

Ninety-Nine Thousand Eight Hundred Seven

Basics

Value: 99806 → 99807 → 99808

Parity: odd

Prime: No

Previous Prime: 99793

Next Prime: 99809

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 3 × 17 × 19 × 103

Divisors: 1, 3, 17, 19, 51, 57, 103, 309, 323, 969

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 11000010111011111

Octal: 302737

Duodecimal: 49913

Hexadecimal: 185df

Square: 9961437249

Square Root: 315.9224588407731

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

Solution of the complementary equation a(n) = 2·a(n-2) + b(n-2), where a(0) = 1, a(1) = 3, b(0) = 2, b(1) = 5, and (a(n)) and (b(n)) are increasing complementary sequences. A295067

Number of compositions (ordered partitions) of n into distinct parts where no part is a multiple of 4. A332310

Number of strings of numbers x(i=1..5) in 0..n with sum i²*x(i) equal to n·25. A183956

If a,b are prime numbers satisfying the Diophantine equation a³+b³=c², then a is -1 mod 12 and b is 1 mod 12, or vice versa. Choose 'b' to be 1 mod 12. This is the sequence of 'b' values, sorted by the magnitude of c. A99807