Base | Representation |
---|---|
bin | 1011010011011110010… |
… | …11011111000001000010 |
3 | 1101010120010100011101010 |
4 | 11221233023133001002 |
5 | 22330432024310432 |
6 | 454233440221350 |
7 | 40030135254405 |
oct | 5515713370102 |
9 | 1333503304333 |
10 | 388412338242 |
11 | 13a7a7703635 |
12 | 6333a60a856 |
13 | 2a81ca48056 |
14 | 14b2923bd3c |
15 | a1844773cc |
hex | 5a6f2df042 |
388412338242 has 8 divisors (see below), whose sum is σ = 776824676496. Its totient is φ = 129470779412.
The previous prime is 388412338207. The next prime is 388412338243. The reversal of 388412338242 is 242833214883.
388412338242 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
388412338242 is an admirable number.
It is a junction number, because it is equal to n+sod(n) for n = 388412338191 and 388412338200.
It is not an unprimeable number, because it can be changed into a prime (388412338243) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32367694848 + ... + 32367694859.
It is an arithmetic number, because the mean of its divisors is an integer number (97103084562).
Almost surely, 2388412338242 is an apocalyptic number.
388412338242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
388412338242 is a wasteful number, since it uses less digits than its factorization.
388412338242 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 64735389712.
The product of its digits is 1769472, while the sum is 48.
The spelling of 388412338242 in words is "three hundred eighty-eight billion, four hundred twelve million, three hundred thirty-eight thousand, two hundred forty-two".
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