Base | Representation |
---|---|
bin | 10111001000100… |
… | …010001111000101 |
3 | 1000001022012102111 |
4 | 113020202033011 |
5 | 1243324111344 |
6 | 102302341021 |
7 | 12421623541 |
oct | 2710421705 |
9 | 1001265374 |
10 | 388113349 |
11 | 18a097338 |
12 | a9b8a771 |
13 | 6253c090 |
14 | 3978ca21 |
15 | 24116834 |
hex | 172223c5 |
388113349 has 16 divisors (see below), whose sum is σ = 445072320. Its totient is φ = 335266560.
The previous prime is 388113347. The next prime is 388113353. The reversal of 388113349 is 943311883.
It is a cyclic number.
It is not a de Polignac number, because 388113349 - 21 = 388113347 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (388113347) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34654 + ... + 44464.
It is an arithmetic number, because the mean of its divisors is an integer number (27817020).
Almost surely, 2388113349 is an apocalyptic number.
It is an amenable number.
388113349 is a deficient number, since it is larger than the sum of its proper divisors (56958971).
388113349 is a wasteful number, since it uses less digits than its factorization.
388113349 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10020.
The product of its digits is 62208, while the sum is 40.
The square root of 388113349 is about 19700.5926053000. The cubic root of 388113349 is about 729.4343206330.
The spelling of 388113349 in words is "three hundred eighty-eight million, one hundred thirteen thousand, three hundred forty-nine".
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