Base | Representation |
---|---|
bin | 111001001111… |
… | …1011100011000 |
3 | 2002110211101022 |
4 | 1302133130120 |
5 | 30140410313 |
6 | 2551142012 |
7 | 513052031 |
oct | 162373430 |
9 | 62424338 |
10 | 30013208 |
11 | 15a3a405 |
12 | a074908 |
13 | 62aacc4 |
14 | 3db3a88 |
15 | 297cc08 |
hex | 1c9f718 |
30013208 has 16 divisors (see below), whose sum is σ = 58090560. Its totient is φ = 14522400.
The previous prime is 30013201. The next prime is 30013283. The reversal of 30013208 is 80231003.
It is a Smith number, since the sum of its digits (17) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30013201) 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, 60263 + ... + 60758.
It is an arithmetic number, because the mean of its divisors is an integer number (3630660).
Almost surely, 230013208 is an apocalyptic number.
It is an amenable number.
30013208 is a deficient number, since it is larger than the sum of its proper divisors (28077352).
30013208 is a wasteful number, since it uses less digits than its factorization.
30013208 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 121058 (or 121054 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 17.
The square root of 30013208 is about 5478.4311622945. The cubic root of 30013208 is about 310.7688442682.
The spelling of 30013208 in words is "thirty million, thirteen thousand, two hundred eight".
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