Base | Representation |
---|---|
bin | 10010101110100001… |
… | …010101110111100101 |
3 | 1220220100110100220110 |
4 | 102232201111313211 |
5 | 312140102020333 |
6 | 13123140523233 |
7 | 1311201602040 |
oct | 225641256745 |
9 | 56810410813 |
10 | 20107845093 |
11 | 85893996a6 |
12 | 3a920b0519 |
13 | 1b85b371bb |
14 | d8a759c57 |
15 | 7ca470063 |
hex | 4ae855de5 |
20107845093 has 16 divisors (see below), whose sum is σ = 30682695680. Its totient is φ = 11474383536.
The previous prime is 20107845071. The next prime is 20107845133. The reversal of 20107845093 is 39054870102.
It is not a de Polignac number, because 20107845093 - 25 = 20107845061 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20107885093) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 643273 + ... + 673806.
It is an arithmetic number, because the mean of its divisors is an integer number (1917668480).
Almost surely, 220107845093 is an apocalyptic number.
It is an amenable number.
20107845093 is a deficient number, since it is larger than the sum of its proper divisors (10574850587).
20107845093 is a wasteful number, since it uses less digits than its factorization.
20107845093 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1317816.
The product of its (nonzero) digits is 60480, while the sum is 39.
The spelling of 20107845093 in words is "twenty billion, one hundred seven million, eight hundred forty-five thousand, ninety-three".
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