Base | Representation |
---|---|
bin | 111001111101… |
… | …0001101110100 |
3 | 2010011201101211 |
4 | 1303322031310 |
5 | 30234310022 |
6 | 3003131204 |
7 | 516161020 |
oct | 163721564 |
9 | 63151354 |
10 | 30385012 |
11 | 16173789 |
12 | a213b04 |
13 | 63ab2c8 |
14 | 406d380 |
15 | 2a02e77 |
hex | 1cfa374 |
30385012 has 12 divisors (see below), whose sum is σ = 60770080. Its totient is φ = 13022136.
The previous prime is 30385007. The next prime is 30385021. The reversal of 30385012 is 21058303.
30385012 is an admirable number.
It is an alternating number because its digits alternate between odd and even.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 542562 + ... + 542617.
Almost surely, 230385012 is an apocalyptic number.
It is an amenable number.
30385012 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.
30385012 is a wasteful number, since it uses less digits than its factorization.
30385012 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1085190 (or 1085188 counting only the distinct ones).
The product of its (nonzero) digits is 720, while the sum is 22.
The square root of 30385012 is about 5512.2601535124. The cubic root of 30385012 is about 312.0468508430.
The spelling of 30385012 in words is "thirty million, three hundred eighty-five thousand, twelve".
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