Base | Representation |
---|---|
bin | 10111001000011… |
… | …010111010010101 |
3 | 1000001020200021101 |
4 | 113020122322111 |
5 | 1243322131344 |
6 | 102301550101 |
7 | 12421440223 |
oct | 2710327225 |
9 | 1001220241 |
10 | 388083349 |
11 | 18a076845 |
12 | a9b75331 |
13 | 6252b524 |
14 | 39781b13 |
15 | 2410c9d4 |
hex | 1721ae95 |
388083349 has 4 divisors (see below), whose sum is σ = 392759136. Its totient is φ = 383407564.
The previous prime is 388083287. The next prime is 388083383. The reversal of 388083349 is 943380883.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 388083349 - 27 = 388083221 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 388083299 and 388083308.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (388083149) 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, 2337769 + ... + 2337934.
It is an arithmetic number, because the mean of its divisors is an integer number (98189784).
Almost surely, 2388083349 is an apocalyptic number.
It is an amenable number.
388083349 is a deficient number, since it is larger than the sum of its proper divisors (4675787).
388083349 is an equidigital number, since it uses as much as digits as its factorization.
388083349 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4675786.
The product of its (nonzero) digits is 497664, while the sum is 46.
The square root of 388083349 is about 19699.8311921702. The cubic root of 388083349 is about 729.4155257857.
The spelling of 388083349 in words is "three hundred eighty-eight million, eighty-three thousand, three hundred forty-nine".
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