Base | Representation |
---|---|
bin | 10111001000111… |
… | …000011000001111 |
3 | 1000001110210211200 |
4 | 113020320120033 |
5 | 1243340012142 |
6 | 102304320543 |
7 | 12422452140 |
oct | 2710703017 |
9 | 1001423750 |
10 | 388204047 |
11 | 18a1494a0 |
12 | aa013153 |
13 | 6257144a |
14 | 397b3ac7 |
15 | 2413364c |
hex | 1723860f |
388204047 has 24 divisors (see below), whose sum is σ = 699104640. Its totient is φ = 201664080.
The previous prime is 388204039. The next prime is 388204049. The reversal of 388204047 is 740402883.
It is not a de Polignac number, because 388204047 - 23 = 388204039 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (388204049) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 279397 + ... + 280782.
It is an arithmetic number, because the mean of its divisors is an integer number (29129360).
Almost surely, 2388204047 is an apocalyptic number.
388204047 is a deficient number, since it is larger than the sum of its proper divisors (310900593).
388204047 is a wasteful number, since it uses less digits than its factorization.
388204047 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 560203 (or 560200 counting only the distinct ones).
The product of its (nonzero) digits is 43008, while the sum is 36.
The square root of 388204047 is about 19702.8943812832. The cubic root of 388204047 is about 729.4911365790.
The spelling of 388204047 in words is "three hundred eighty-eight million, two hundred four thousand, forty-seven".
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