Base | Representation |
---|---|
bin | 111001011010… |
… | …1011001101001 |
3 | 2002122101202022 |
4 | 1302311121221 |
5 | 30201300040 |
6 | 2553114225 |
7 | 513605162 |
oct | 162653151 |
9 | 62571668 |
10 | 30103145 |
11 | 15aa0a36 |
12 | a0b8975 |
13 | 630cc17 |
14 | 3dd8769 |
15 | 29996b5 |
hex | 1cb5669 |
30103145 has 8 divisors (see below), whose sum is σ = 36400320. Its totient is φ = 23898160.
The previous prime is 30103133. The next prime is 30103169. The reversal of 30103145 is 54130103.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30103145 - 26 = 30103081 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, 22325 + ... + 23634.
It is an arithmetic number, because the mean of its divisors is an integer number (4550040).
Almost surely, 230103145 is an apocalyptic number.
It is an amenable number.
30103145 is a deficient number, since it is larger than the sum of its proper divisors (6297175).
30103145 is a wasteful number, since it uses less digits than its factorization.
30103145 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 46095.
The product of its (nonzero) digits is 180, while the sum is 17.
The square root of 30103145 is about 5486.6333028552. The cubic root of 30103145 is about 311.0789493633.
Adding to 30103145 its reverse (54130103), we get a palindrome (84233248).
The spelling of 30103145 in words is "thirty million, one hundred three thousand, one hundred forty-five".
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