Base | Representation |
---|---|
bin | 111001011010… |
… | …1111000011011 |
3 | 2002122111110021 |
4 | 1302311320123 |
5 | 30201330430 |
6 | 2553131311 |
7 | 513614005 |
oct | 162657033 |
9 | 62574407 |
10 | 30105115 |
11 | 15aa2467 |
12 | a0b9b37 |
13 | 6310aa1 |
14 | 3dd9375 |
15 | 299a07a |
hex | 1cb5e1b |
30105115 has 8 divisors (see below), whose sum is σ = 36329040. Its totient is φ = 23948832.
The previous prime is 30105109. The next prime is 30105151. The reversal of 30105115 is 51150103.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30105115 - 213 = 30096923 is a prime.
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, 15924 + ... + 17713.
It is an arithmetic number, because the mean of its divisors is an integer number (4541130).
Almost surely, 230105115 is an apocalyptic number.
30105115 is a deficient number, since it is larger than the sum of its proper divisors (6223925).
30105115 is a wasteful number, since it uses less digits than its factorization.
30105115 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 33821.
The product of its (nonzero) digits is 75, while the sum is 16.
The square root of 30105115 is about 5486.8128271338. The cubic root of 30105115 is about 311.0857350570.
Adding to 30105115 its reverse (51150103), we get a palindrome (81255218).
The spelling of 30105115 in words is "thirty million, one hundred five thousand, one hundred fifteen".
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