Base | Representation |
---|---|
bin | 111111011110110… |
… | …1100101110101100 |
3 | 12111110011110021120 |
4 | 1332331230232230 |
5 | 13330301300322 |
6 | 551211300540 |
7 | 103533402306 |
oct | 17675545654 |
9 | 5443143246 |
10 | 2130103212 |
11 | 9a342a086 |
12 | 4b544a750 |
13 | 27c3cab03 |
14 | 162c84976 |
15 | c7011a5c |
hex | 7ef6cbac |
2130103212 has 24 divisors (see below), whose sum is σ = 5085829056. Its totient is φ = 693521808.
The previous prime is 2130103211. The next prime is 2130103237. The reversal of 2130103212 is 2123010312.
It is a junction number, because it is equal to n+sod(n) for n = 2130103191 and 2130103200.
It is not an unprimeable number, because it can be changed into a prime (2130103211) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2063538 + ... + 2064569.
It is an arithmetic number, because the mean of its divisors is an integer number (211909544).
Almost surely, 22130103212 is an apocalyptic number.
It is an amenable number.
2130103212 is an abundant number, since it is smaller than the sum of its proper divisors (2955725844).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2130103212 is a wasteful number, since it uses less digits than its factorization.
2130103212 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4128157 (or 4128155 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 15.
The square root of 2130103212 is about 46153.0411999036. The cubic root of 2130103212 is about 1286.6691329772.
Adding to 2130103212 its reverse (2123010312), we get a palindrome (4253113524).
The spelling of 2130103212 in words is "two billion, one hundred thirty million, one hundred three thousand, two hundred twelve".
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