Base | Representation |
---|---|
bin | 10011011011110110… |
… | …100000011011100111 |
3 | 1222212100111221100100 |
4 | 103123312200123213 |
5 | 320214300234403 |
6 | 13330425315143 |
7 | 1336065126222 |
oct | 233366403347 |
9 | 58770457310 |
10 | 20868368103 |
11 | 8939716910 |
12 | 4064935ab3 |
13 | 1c7757760b |
14 | 101d76a5b9 |
15 | 8220ea2a3 |
hex | 4dbda06e7 |
20868368103 has 12 divisors (see below), whose sum is σ = 32883489288. Its totient is φ = 12647495760.
The previous prime is 20868368083. The next prime is 20868368107. The reversal of 20868368103 is 30186386802.
It is not a de Polignac number, because 20868368103 - 212 = 20868364007 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20868368107) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105395700 + ... + 105395897.
It is an arithmetic number, because the mean of its divisors is an integer number (2740290774).
Almost surely, 220868368103 is an apocalyptic number.
20868368103 is a deficient number, since it is larger than the sum of its proper divisors (12015121185).
20868368103 is a wasteful number, since it uses less digits than its factorization.
20868368103 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 210791614 (or 210791611 counting only the distinct ones).
The product of its (nonzero) digits is 331776, while the sum is 45.
The spelling of 20868368103 in words is "twenty billion, eight hundred sixty-eight million, three hundred sixty-eight thousand, one hundred three".
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