Base | Representation |
---|---|
bin | 10011101010011011… |
… | …101101100101001000 |
3 | 2000111101211122101121 |
4 | 103222123231211020 |
5 | 321214412033222 |
6 | 13411004525024 |
7 | 1345125362413 |
oct | 235233554510 |
9 | 60441748347 |
10 | 21113002312 |
11 | 8a54815146 |
12 | 4112850774 |
13 | 1cb615b89c |
14 | 104404ab7a |
15 | 83881e5c7 |
hex | 4ea6ed948 |
21113002312 has 32 divisors (see below), whose sum is σ = 42353539200. Its totient is φ = 9836942400.
The previous prime is 21113002307. The next prime is 21113002349. The reversal of 21113002312 is 21320031112.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1129264 + ... + 1147807.
It is an arithmetic number, because the mean of its divisors is an integer number (1323548100).
Almost surely, 221113002312 is an apocalyptic number.
It is an amenable number.
21113002312 is an abundant number, since it is smaller than the sum of its proper divisors (21240536888).
21113002312 is a wasteful number, since it uses less digits than its factorization.
21113002312 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2277157 (or 2277153 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 16.
Adding to 21113002312 its reverse (21320031112), we get a palindrome (42433033424).
The spelling of 21113002312 in words is "twenty-one billion, one hundred thirteen million, two thousand, three hundred twelve".
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