Base | Representation |
---|---|
bin | 10111001001101… |
… | …111001111111011 |
3 | 1000001220020010200 |
4 | 113021233033323 |
5 | 1243414210140 |
6 | 102313213243 |
7 | 12424406316 |
oct | 2711571773 |
9 | 1001806120 |
10 | 388428795 |
11 | 18a292337 |
12 | aa101223 |
13 | 6261c831 |
14 | 3983197d |
15 | 2417a030 |
hex | 1726f3fb |
388428795 has 24 divisors (see below), whose sum is σ = 681394896. Its totient is φ = 204664128.
The previous prime is 388428749. The next prime is 388428797. The reversal of 388428795 is 597824883.
It is a happy number.
It is not a de Polignac number, because 388428795 - 26 = 388428731 is a prime.
It is not an unprimeable number, because it can be changed into a prime (388428797) 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, 48264 + ... + 55733.
It is an arithmetic number, because the mean of its divisors is an integer number (28391454).
Almost surely, 2388428795 is an apocalyptic number.
388428795 is a deficient number, since it is larger than the sum of its proper divisors (292966101).
388428795 is a wasteful number, since it uses less digits than its factorization.
388428795 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 104091 (or 104088 counting only the distinct ones).
The product of its digits is 3870720, while the sum is 54.
The square root of 388428795 is about 19708.5969820279. The cubic root of 388428795 is about 729.6318873395.
The spelling of 388428795 in words is "three hundred eighty-eight million, four hundred twenty-eight thousand, seven hundred ninety-five".
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