Base | Representation |
---|---|
bin | 10111000110110… |
… | …101011111100010 |
3 | 1000000110120102210 |
4 | 113012311133202 |
5 | 1243220333223 |
6 | 102245022550 |
7 | 12415060140 |
oct | 2706653742 |
9 | 1000416383 |
10 | 387667938 |
11 | 189912729 |
12 | a99b4a56 |
13 | 62414418 |
14 | 396b4590 |
15 | 24079893 |
hex | 171b57e2 |
387667938 has 32 divisors (see below), whose sum is σ = 904955904. Its totient is φ = 108405072.
The previous prime is 387667933. The next prime is 387667957. The reversal of 387667938 is 839766783.
It is a happy number.
It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is not an unprimeable number, because it can be changed into a prime (387667933) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96220 + ... + 100167.
It is an arithmetic number, because the mean of its divisors is an integer number (28279872).
Almost surely, 2387667938 is an apocalyptic number.
387667938 is an abundant number, since it is smaller than the sum of its proper divisors (517287966).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
387667938 is a wasteful number, since it uses less digits than its factorization.
387667938 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 196446.
The product of its digits is 9144576, while the sum is 57.
The square root of 387667938 is about 19689.2848524267. The cubic root of 387667938 is about 729.1551732842.
The spelling of 387667938 in words is "three hundred eighty-seven million, six hundred sixty-seven thousand, nine hundred thirty-eight".
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