Base | Representation |
---|---|
bin | 10111001001011… |
… | …010011000100000 |
3 | 1000001201212220020 |
4 | 113021122120200 |
5 | 1243403441303 |
6 | 102311313440 |
7 | 12423602202 |
oct | 2711323040 |
9 | 1001655806 |
10 | 388343328 |
11 | 18a2340aa |
12 | aa07b880 |
13 | 625bc969 |
14 | 3980c772 |
15 | 2415ea53 |
hex | 1725a620 |
388343328 has 48 divisors (see below), whose sum is σ = 1041102720. Its totient is φ = 126692096.
The previous prime is 388343327. The next prime is 388343341. The reversal of 388343328 is 823343883.
It is a tau number, because it is divible by the number of its divisors (48).
It is a nude number because it is divisible by every one of its digits.
It is a self number, because there is not a number n which added to its sum of digits gives 388343328.
It is not an unprimeable number, because it can be changed into a prime (388343327) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38523 + ... + 47546.
It is an arithmetic number, because the mean of its divisors is an integer number (21689640).
Almost surely, 2388343328 is an apocalyptic number.
It is an amenable number.
388343328 is an abundant number, since it is smaller than the sum of its proper divisors (652759392).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
388343328 is a wasteful number, since it uses less digits than its factorization.
388343328 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 86129 (or 86121 counting only the distinct ones).
The product of its digits is 331776, while the sum is 42.
The square root of 388343328 is about 19706.4285957654. The cubic root of 388343328 is about 729.5783691456.
The spelling of 388343328 in words is "three hundred eighty-eight million, three hundred forty-three thousand, three hundred twenty-eight".
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