Base | Representation |
---|---|
bin | 10111000000001… |
… | …010010010101010 |
3 | 222220011200010210 |
4 | 113000022102222 |
5 | 1242243334442 |
6 | 102143321550 |
7 | 12364151502 |
oct | 2700122252 |
9 | 886150123 |
10 | 385918122 |
11 | 188927aa7 |
12 | a92b02b6 |
13 | 61c50b25 |
14 | 3937aa02 |
15 | 23d3119c |
hex | 1700a4aa |
385918122 has 32 divisors (see below), whose sum is σ = 832669632. Its totient is φ = 118786304.
The previous prime is 385918111. The next prime is 385918123. The reversal of 385918122 is 221819583.
It is not an unprimeable number, because it can be changed into a prime (385918123) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30288 + ... + 41099.
It is an arithmetic number, because the mean of its divisors is an integer number (26020926).
Almost surely, 2385918122 is an apocalyptic number.
385918122 is an abundant number, since it is smaller than the sum of its proper divisors (446751510).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
385918122 is a wasteful number, since it uses less digits than its factorization.
385918122 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 71462.
The product of its digits is 34560, while the sum is 39.
The square root of 385918122 is about 19644.7988536406. The cubic root of 385918122 is about 728.0564564457.
The spelling of 385918122 in words is "three hundred eighty-five million, nine hundred eighteen thousand, one hundred twenty-two".
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