Base | Representation |
---|---|
bin | 111001011011… |
… | …1100100001100 |
3 | 2002122211220201 |
4 | 1302313210030 |
5 | 30202041022 |
6 | 2553223244 |
7 | 513643060 |
oct | 162674414 |
9 | 62584821 |
10 | 30112012 |
11 | 15aa7667 |
12 | a101b24 |
13 | 6313c78 |
14 | 3ddbaa0 |
15 | 299c127 |
hex | 1cb790c |
30112012 has 12 divisors (see below), whose sum is σ = 60224080. Its totient is φ = 12905136.
The previous prime is 30111971. The next prime is 30112051. The reversal of 30112012 is 21021103.
30112012 is an admirable number.
It is a self number, because there is not a number n which added to its sum of digits gives 30112012.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 537687 + ... + 537742.
Almost surely, 230112012 is an apocalyptic number.
It is an amenable number.
30112012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30112012 is a wasteful number, since it uses less digits than its factorization.
30112012 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1075440 (or 1075438 counting only the distinct ones).
The product of its (nonzero) digits is 12, while the sum is 10.
The square root of 30112012 is about 5487.4412980915. The cubic root of 30112012 is about 311.1094895418.
Adding to 30112012 its reverse (21021103), we get a palindrome (51133115).
Subtracting from 30112012 its reverse (21021103), we obtain a palindrome (9090909).
The spelling of 30112012 in words is "thirty million, one hundred twelve thousand, twelve".
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