Base | Representation |
---|---|
bin | 10110111101011… |
… | …101100000011000 |
3 | 222211211201022120 |
4 | 112331131200120 |
5 | 1242103213032 |
6 | 102120221240 |
7 | 12355143240 |
oct | 2675354030 |
9 | 884751276 |
10 | 385210392 |
11 | 1884942a6 |
12 | a900a820 |
13 | 61a63958 |
14 | 39234b20 |
15 | 23c4162c |
hex | 16f5d818 |
385210392 has 32 divisors (see below), whose sum is σ = 1100601600. Its totient is φ = 110060064.
The previous prime is 385210381. The next prime is 385210409. The reversal of 385210392 is 293012583.
It is a super-2 number, since 2×3852103922 = 296774092209587328, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1146292 + ... + 1146627.
It is an arithmetic number, because the mean of its divisors is an integer number (34393800).
Almost surely, 2385210392 is an apocalyptic number.
It is an amenable number.
385210392 is an abundant number, since it is smaller than the sum of its proper divisors (715391208).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
385210392 is a wasteful number, since it uses less digits than its factorization.
385210392 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2292935 (or 2292931 counting only the distinct ones).
The product of its (nonzero) digits is 12960, while the sum is 33.
The square root of 385210392 is about 19626.7774226947. Note that the first 3 decimals coincide. The cubic root of 385210392 is about 727.6111264923.
The spelling of 385210392 in words is "three hundred eighty-five million, two hundred ten thousand, three hundred ninety-two".
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