Base | Representation |
---|---|
bin | 10110111110011… |
… | …010011000010000 |
3 | 222212022101100020 |
4 | 112332122120100 |
5 | 1242134202403 |
6 | 102125423440 |
7 | 12360232203 |
oct | 2676323020 |
9 | 885271306 |
10 | 385459728 |
11 | 188644665 |
12 | a910ab80 |
13 | 61b202a4 |
14 | 3929b93a |
15 | 23c90453 |
hex | 16f9a610 |
385459728 has 20 divisors (see below), whose sum is σ = 995771088. Its totient is φ = 128486560.
The previous prime is 385459727. The next prime is 385459757. The reversal of 385459728 is 827954583.
It is not an unprimeable number, because it can be changed into a prime (385459721) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4015158 + ... + 4015253.
Almost surely, 2385459728 is an apocalyptic number.
It is an amenable number.
385459728 is an abundant number, since it is smaller than the sum of its proper divisors (610311360).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
385459728 is a wasteful number, since it uses less digits than its factorization.
385459728 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8030422 (or 8030416 counting only the distinct ones).
The product of its digits is 2419200, while the sum is 51.
The square root of 385459728 is about 19633.1283294334. The cubic root of 385459728 is about 727.7680801320.
The spelling of 385459728 in words is "three hundred eighty-five million, four hundred fifty-nine thousand, seven hundred twenty-eight".
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