Base | Representation |
---|---|
bin | 111010101111… |
… | …0000100011101 |
3 | 2010221111110000 |
4 | 1311132010131 |
5 | 30340402023 |
6 | 3020004513 |
7 | 522513315 |
oct | 165360435 |
9 | 63844400 |
10 | 30794013 |
11 | 16422aa8 |
12 | a390739 |
13 | 64c2513 |
14 | 4138445 |
15 | 2a84243 |
hex | 1d5e11d |
30794013 has 20 divisors (see below), whose sum is σ = 46460128. Its totient is φ = 20324520.
The previous prime is 30794011. The next prime is 30794017. The reversal of 30794013 is 31049703.
It is not a de Polignac number, because 30794013 - 21 = 30794011 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30794011) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6498 + ... + 10188.
Almost surely, 230794013 is an apocalyptic number.
It is an amenable number.
30794013 is a deficient number, since it is larger than the sum of its proper divisors (15666115).
30794013 is a wasteful number, since it uses less digits than its factorization.
30794013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3806 (or 3797 counting only the distinct ones).
The product of its (nonzero) digits is 2268, while the sum is 27.
The square root of 30794013 is about 5549.2353527310. The cubic root of 30794013 is about 313.4407296206.
The spelling of 30794013 in words is "thirty million, seven hundred ninety-four thousand, thirteen".
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