Base | Representation |
---|---|
bin | 10000111100110011… |
… | …10010001001101011 |
3 | 212111012021102001210 |
4 | 20132121302021223 |
5 | 122114100310331 |
6 | 4102552444203 |
7 | 441335544444 |
oct | 103631621153 |
9 | 25435242053 |
10 | 9100010091 |
11 | 394a79a2a7 |
12 | 191b6a9663 |
13 | b203c8573 |
14 | 62480a2cb |
15 | 383d84446 |
hex | 21e67226b |
9100010091 has 4 divisors (see below), whose sum is σ = 12133346792. Its totient is φ = 6066673392.
The previous prime is 9100010069. The next prime is 9100010107. The reversal of 9100010091 is 1900100019.
9100010091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 9100010091 - 219 = 9099485803 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (9100010791) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1516668346 + ... + 1516668351.
It is an arithmetic number, because the mean of its divisors is an integer number (3033336698).
Almost surely, 29100010091 is an apocalyptic number.
9100010091 is a deficient number, since it is larger than the sum of its proper divisors (3033336701).
9100010091 is a wasteful number, since it uses less digits than its factorization.
9100010091 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3033336700.
The product of its (nonzero) digits is 81, while the sum is 21.
The square root of 9100010091 is about 95393.9730328913. The cubic root of 9100010091 is about 2087.7602503694.
The spelling of 9100010091 in words is "nine billion, one hundred million, ten thousand, ninety-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.093 sec. • engine limits •