Base | Representation |
---|---|
bin | 111001011110… |
… | …0000111000100 |
3 | 2002200210110012 |
4 | 1302330013010 |
5 | 30203140003 |
6 | 2553445352 |
7 | 514051253 |
oct | 162740704 |
9 | 62623405 |
10 | 30130628 |
11 | 1600a650 |
12 | a110858 |
13 | 631c598 |
14 | 400479a |
15 | 29a28d8 |
hex | 1cbc1c4 |
30130628 has 24 divisors (see below), whose sum is σ = 57788640. Its totient is φ = 13632320.
The previous prime is 30130627. The next prime is 30130643. The reversal of 30130628 is 82603103.
It is not an unprimeable number, because it can be changed into a prime (30130627) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8783 + ... + 11721.
It is an arithmetic number, because the mean of its divisors is an integer number (2407860).
Almost surely, 230130628 is an apocalyptic number.
It is an amenable number.
30130628 is a deficient number, since it is larger than the sum of its proper divisors (27658012).
30130628 is a wasteful number, since it uses less digits than its factorization.
30130628 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3187 (or 3185 counting only the distinct ones).
The product of its (nonzero) digits is 864, while the sum is 23.
The square root of 30130628 is about 5489.1372728326. The cubic root of 30130628 is about 311.1735882273.
The spelling of 30130628 in words is "thirty million, one hundred thirty thousand, six hundred twenty-eight".
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