Base | Representation |
---|---|
bin | 11100001101010000… |
… | …100111100000100100 |
3 | 2220011202202202020202 |
4 | 130031100213200210 |
5 | 444012012343022 |
6 | 21525212250032 |
7 | 2121355134023 |
oct | 341520474044 |
9 | 86152682222 |
10 | 30287231012 |
11 | 11932396a35 |
12 | 5a53170918 |
13 | 2b18a41b8c |
14 | 16746568ba |
15 | bc3e64592 |
hex | 70d427824 |
30287231012 has 12 divisors (see below), whose sum is σ = 54712417536. Its totient is φ = 14655111720.
The previous prime is 30287231011. The next prime is 30287231021. The reversal of 30287231012 is 21013278203.
It is not an unprimeable number, because it can be changed into a prime (30287231011) 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, 122125808 + ... + 122126055.
It is an arithmetic number, because the mean of its divisors is an integer number (4559368128).
Almost surely, 230287231012 is an apocalyptic number.
It is an amenable number.
30287231012 is a deficient number, since it is larger than the sum of its proper divisors (24425186524).
30287231012 is a wasteful number, since it uses less digits than its factorization.
30287231012 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 244251898 (or 244251896 counting only the distinct ones).
The product of its (nonzero) digits is 4032, while the sum is 29.
The spelling of 30287231012 in words is "thirty billion, two hundred eighty-seven million, two hundred thirty-one thousand, twelve".
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