Base | Representation |
---|---|
bin | 11100001110001001… |
… | …010101111011111010 |
3 | 2220012210202020101000 |
4 | 130032021111323322 |
5 | 444024314214432 |
6 | 21530503105430 |
7 | 2121625416330 |
oct | 341611257372 |
9 | 86183666330 |
10 | 30302101242 |
11 | 1193a823186 |
12 | 5a58142276 |
13 | 2b1bb4a42a |
14 | 1676607b50 |
15 | bc540057c |
hex | 70e255efa |
30302101242 has 64 divisors (see below), whose sum is σ = 76989173760. Its totient is φ = 8654204592.
The previous prime is 30302101237. The next prime is 30302101301. The reversal of 30302101242 is 24210120303.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 991563 + ... + 1021665.
It is an arithmetic number, because the mean of its divisors is an integer number (1202955840).
Almost surely, 230302101242 is an apocalyptic number.
30302101242 is an abundant number, since it is smaller than the sum of its proper divisors (46687072518).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30302101242 is a wasteful number, since it uses less digits than its factorization.
30302101242 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 32784 (or 32778 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
Adding to 30302101242 its reverse (24210120303), we get a palindrome (54512221545).
The spelling of 30302101242 in words is "thirty billion, three hundred two million, one hundred one thousand, two hundred forty-two".
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