Properties of the Number 99945

Ninety-Nine Thousand Nine Hundred Forty-Five

Basics

Value: 99944 → 99945 → 99946

Parity: odd

Prime: No

Previous Prime: 99929

Next Prime: 99961

Digit Sum: 36

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 5 × 2221

Divisors: 1, 3, 5, 9, 15, 45, 2221, 6663, 11105, 19989

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4938 Try Today's Challenge

Representations

Binary: 11000011001101001

Octal: 303151

Duodecimal: 49A09

Hexadecimal: 18669

Square: 9989003025

Square Root: 316.1407914205315

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

Numbers without comma-successors: these are the numbers k such that if the commas sequence A121805 is started at k instead of 1, there is no second term. A367341

Expansion of e.g.f. log(1+x)/exp(sin(x)). A9436

Principal diagonal of the convolution array A213838. A213839

Number of (n+2) X (2+2) 0..3 arrays with every 3 X 3 subblock row and column sum not equal to 0 3 5 6 or 7 and every 3 X 3 diagonal and antidiagonal sum equal to 0 3 5 6 or 7. A252248

Numbers n such that for every k = 1, 2, ..., A305706(n)-1, it is possible to insert plus signs into the decimal representation of n^k to make sum equal n. A305707

Decimal expansion of the 206545-digit integer solution to Archimedes's cattle problem. A96151

Number of 4 X n binary matrices avoiding simultaneously the right angled numbered polyomino patterns (ranpp) (00;1) and (11;0). A99945