Base | Representation |
---|---|
bin | 10010101000110111… |
… | …100010110100111010 |
3 | 1220122201222211200212 |
4 | 102220313202310322 |
5 | 311441312031132 |
6 | 13105512031122 |
7 | 1305640465505 |
oct | 225067426472 |
9 | 56581884625 |
10 | 20013002042 |
11 | 853a8aa710 |
12 | 3a663924a2 |
13 | 1b6c2aaa57 |
14 | d7bd0c13c |
15 | 7c1e885b2 |
hex | 4a8de2d3a |
20013002042 has 8 divisors (see below), whose sum is σ = 32748548832. Its totient is φ = 9096819100.
The previous prime is 20013001969. The next prime is 20013002047. The reversal of 20013002042 is 24020031002.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not an unprimeable number, because it can be changed into a prime (20013002047) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454840934 + ... + 454840977.
It is an arithmetic number, because the mean of its divisors is an integer number (4093568604).
Almost surely, 220013002042 is an apocalyptic number.
20013002042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
20013002042 is a deficient number, since it is larger than the sum of its proper divisors (12735546790).
20013002042 is a wasteful number, since it uses less digits than its factorization.
20013002042 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 909681924.
The product of its (nonzero) digits is 96, while the sum is 14.
Adding to 20013002042 its reverse (24020031002), we get a palindrome (44033033044).
The spelling of 20013002042 in words is "twenty billion, thirteen million, two thousand, forty-two".
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