Base | Representation |
---|---|
bin | 10010101110001011… |
… | …111011011111001100 |
3 | 1220212221220012012120 |
4 | 102232023323133030 |
5 | 312132132411022 |
6 | 13122420332540 |
7 | 1311103103262 |
oct | 225613733714 |
9 | 56787805176 |
10 | 20102232012 |
11 | 8586205495 |
12 | 3a90244150 |
13 | 1b84920355 |
14 | d89ad8432 |
15 | 7c9c11d5c |
hex | 4ae2fb7cc |
20102232012 has 48 divisors (see below), whose sum is σ = 49674733920. Its totient is φ = 6305262592.
The previous prime is 20102231999. The next prime is 20102232037. The reversal of 20102232012 is 21023220102.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 20102231982 and 20102232000.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1526914 + ... + 1540022.
It is an arithmetic number, because the mean of its divisors is an integer number (1034890290).
Almost surely, 220102232012 is an apocalyptic number.
It is an amenable number.
20102232012 is an abundant number, since it is smaller than the sum of its proper divisors (29572501908).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20102232012 is a wasteful number, since it uses less digits than its factorization.
20102232012 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 20650 (or 20648 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 15.
Adding to 20102232012 its reverse (21023220102), we get a palindrome (41125452114).
The spelling of 20102232012 in words is "twenty billion, one hundred two million, two hundred thirty-two thousand, twelve".
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