Base | Representation |
---|---|
bin | 111010100010… |
… | …1100101010101 |
3 | 2010202101212100 |
4 | 1311011211111 |
5 | 30324144332 |
6 | 3013512313 |
7 | 521615025 |
oct | 165054525 |
9 | 63671770 |
10 | 30693717 |
11 | 1636470a |
12 | a342699 |
13 | 6488982 |
14 | 410da85 |
15 | 2a6467c |
hex | 1d45955 |
30693717 has 12 divisors (see below), whose sum is σ = 44388864. Its totient is φ = 20437800.
The previous prime is 30693713. The next prime is 30693727. The reversal of 30693717 is 71739603.
It is not a de Polignac number, because 30693717 - 22 = 30693713 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30693713) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8878 + ... + 11840.
It is an arithmetic number, because the mean of its divisors is an integer number (3699072).
Almost surely, 230693717 is an apocalyptic number.
It is an amenable number.
30693717 is a deficient number, since it is larger than the sum of its proper divisors (13695147).
30693717 is a wasteful number, since it uses less digits than its factorization.
30693717 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4120 (or 4117 counting only the distinct ones).
The product of its (nonzero) digits is 23814, while the sum is 36.
The square root of 30693717 is about 5540.1910616873. The cubic root of 30693717 is about 313.1000676958.
It can be divided in two parts, 3069 and 3717, that added together give a triangular number (6786 = T116).
The spelling of 30693717 in words is "thirty million, six hundred ninety-three thousand, seven hundred seventeen".
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