Base | Representation |
---|---|
bin | 10110111100101… |
… | …100111001010101 |
3 | 222211110121012020 |
4 | 112330230321111 |
5 | 1242030330120 |
6 | 102112043353 |
7 | 12353353611 |
oct | 2674547125 |
9 | 884417166 |
10 | 385011285 |
11 | 18836874a |
12 | a8b33559 |
13 | 619c4139 |
14 | 391c2341 |
15 | 23c02640 |
hex | 16f2ce55 |
385011285 has 16 divisors (see below), whose sum is σ = 626460480. Its totient is φ = 201858560.
The previous prime is 385011281. The next prime is 385011299. The reversal of 385011285 is 582110583.
It is a happy number.
It is not a de Polignac number, because 385011285 - 22 = 385011281 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (385011281) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216636 + ... + 218405.
It is an arithmetic number, because the mean of its divisors is an integer number (39153780).
Almost surely, 2385011285 is an apocalyptic number.
It is an amenable number.
385011285 is a deficient number, since it is larger than the sum of its proper divisors (241449195).
385011285 is a wasteful number, since it uses less digits than its factorization.
385011285 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 435108.
The product of its (nonzero) digits is 9600, while the sum is 33.
The square root of 385011285 is about 19621.7044366691. The cubic root of 385011285 is about 727.4857426854.
The spelling of 385011285 in words is "three hundred eighty-five million, eleven thousand, two hundred eighty-five".
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