Base | Representation |
---|---|
bin | 11011111110110110… |
… | …111100110011000010 |
3 | 2212112221010201020011 |
4 | 123332312330303002 |
5 | 443013134341232 |
6 | 21445221535134 |
7 | 2112362365654 |
oct | 337666746302 |
9 | 85487121204 |
10 | 30045621442 |
11 | 11818a74101 |
12 | 59a62744aa |
13 | 2aaa979535 |
14 | 16505226d4 |
15 | bacb3b547 |
hex | 6fedbccc2 |
30045621442 has 16 divisors (see below), whose sum is σ = 45204423264. Its totient is φ = 14977548000.
The previous prime is 30045621409. The next prime is 30045621491. The reversal of 30045621442 is 24412654003.
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, 909942 + ... + 942382.
It is an arithmetic number, because the mean of its divisors is an integer number (2825276454).
Almost surely, 230045621442 is an apocalyptic number.
30045621442 is a deficient number, since it is larger than the sum of its proper divisors (15158801822).
30045621442 is a wasteful number, since it uses less digits than its factorization.
30045621442 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 33825.
The product of its (nonzero) digits is 23040, while the sum is 31.
The spelling of 30045621442 in words is "thirty billion, forty-five million, six hundred twenty-one thousand, four hundred forty-two".
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