Base | Representation |
---|---|
bin | 10111001000100… |
… | …100010111101101 |
3 | 1000001022122102100 |
4 | 113020210113231 |
5 | 1243324401333 |
6 | 102302445313 |
7 | 12421661202 |
oct | 2710442755 |
9 | 1001278370 |
10 | 388122093 |
11 | 18a0a2967 |
12 | a9b93839 |
13 | 62543058 |
14 | 39791ca9 |
15 | 24119213 |
hex | 172245ed |
388122093 has 24 divisors (see below), whose sum is σ = 574025400. Its totient is φ = 252633600.
The previous prime is 388122067. The next prime is 388122107. The reversal of 388122093 is 390221883.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 137311524 + 250810569 = 11718^2 + 15837^2 .
It is not a de Polignac number, because 388122093 - 26 = 388122029 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (388122793) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63433 + ... + 69281.
It is an arithmetic number, because the mean of its divisors is an integer number (23917725).
Almost surely, 2388122093 is an apocalyptic number.
It is an amenable number.
388122093 is a deficient number, since it is larger than the sum of its proper divisors (185903307).
388122093 is a wasteful number, since it uses less digits than its factorization.
388122093 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6029 (or 6026 counting only the distinct ones).
The product of its (nonzero) digits is 20736, while the sum is 36.
The square root of 388122093 is about 19700.8145263083. The cubic root of 388122093 is about 729.4397985223.
The spelling of 388122093 in words is "three hundred eighty-eight million, one hundred twenty-two thousand, ninety-three".
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