Base | Representation |
---|---|
bin | 1011010011101010101… |
… | …11100001101110011001 |
3 | 1101010211100200202210201 |
4 | 11221311113201232121 |
5 | 22331140114031421 |
6 | 454252025342201 |
7 | 40032535600102 |
oct | 5516527415631 |
9 | 1333740622721 |
10 | 388516158361 |
11 | 13a850274191 |
12 | 63369337961 |
13 | 2a8383c8586 |
14 | 14b38d453a9 |
15 | a18d633b91 |
hex | 5a755e1b99 |
388516158361 has 8 divisors (see below), whose sum is σ = 401928954120. Its totient is φ = 375104408448.
The previous prime is 388516158343. The next prime is 388516158367. The reversal of 388516158361 is 163851615883.
It can be written as a sum of positive squares in 4 ways, for example, as 236712413961 + 151803744400 = 486531^2 + 389620^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 388516158361 - 211 = 388516156313 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (388516158367) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 535555 + ... + 1031431.
It is an arithmetic number, because the mean of its divisors is an integer number (50241119265).
Almost surely, 2388516158361 is an apocalyptic number.
It is an amenable number.
388516158361 is a deficient number, since it is larger than the sum of its proper divisors (13412795759).
388516158361 is a wasteful number, since it uses less digits than its factorization.
388516158361 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 522923.
The product of its digits is 4147200, while the sum is 55.
The spelling of 388516158361 in words is "three hundred eighty-eight billion, five hundred sixteen million, one hundred fifty-eight thousand, three hundred sixty-one".
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