Base | Representation |
---|---|
bin | 10111001011010… |
… | …100110111111000 |
3 | 1000002200101010110 |
4 | 113023110313320 |
5 | 1244021020143 |
6 | 102330144320 |
7 | 12431062014 |
oct | 2713246770 |
9 | 1002611113 |
10 | 388845048 |
11 | 18a547049 |
12 | aa2820a0 |
13 | 62737137 |
14 | 398dd544 |
15 | 2420d533 |
hex | 172d4df8 |
388845048 has 32 divisors (see below), whose sum is σ = 973560960. Its totient is φ = 129421920.
The previous prime is 388844999. The next prime is 388845071. The reversal of 388845048 is 840548883.
It is a junction number, because it is equal to n+sod(n) for n = 388844988 and 388845006.
It is a congruent number.
It is an unprimeable number.
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 7 ways as a sum of consecutive naturals, for example, 4861 + ... + 28307.
It is an arithmetic number, because the mean of its divisors is an integer number (30423780).
Almost surely, 2388845048 is an apocalyptic number.
It is an amenable number.
388845048 is an abundant number, since it is smaller than the sum of its proper divisors (584715912).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
388845048 is a wasteful number, since it uses less digits than its factorization.
388845048 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 24147 (or 24143 counting only the distinct ones).
The product of its (nonzero) digits is 983040, while the sum is 48.
The square root of 388845048 is about 19719.1543429225. The cubic root of 388845048 is about 729.8924267583.
The spelling of 388845048 in words is "three hundred eighty-eight million, eight hundred forty-five thousand, forty-eight".
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