Base | Representation |
---|---|
bin | 10111000111111… |
… | …010011000011011 |
3 | 1000000222220111111 |
4 | 113013322120123 |
5 | 1243303400412 |
6 | 102255041151 |
7 | 12420343606 |
oct | 2707723033 |
9 | 1000886444 |
10 | 387950107 |
11 | 189a95726 |
12 | a9b101b7 |
13 | 624b299c |
14 | 3974933d |
15 | 240d32a7 |
hex | 171fa61b |
387950107 has 2 divisors, whose sum is σ = 387950108. Its totient is φ = 387950106.
The previous prime is 387950093. The next prime is 387950141. The reversal of 387950107 is 701059783.
It is a weak prime.
It is an emirp because it is prime and its reverse (701059783) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-387950107 is a prime.
It is a super-2 number, since 2×3879501072 = 301010571042622898, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 387950107.
It is not a weakly prime, because it can be changed into another prime (387950207) 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 as a sum of consecutive naturals, namely, 193975053 + 193975054.
It is an arithmetic number, because the mean of its divisors is an integer number (193975054).
Almost surely, 2387950107 is an apocalyptic number.
387950107 is a deficient number, since it is larger than the sum of its proper divisors (1).
387950107 is an equidigital number, since it uses as much as digits as its factorization.
387950107 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 52920, while the sum is 40.
The square root of 387950107 is about 19696.4490962204. The cubic root of 387950107 is about 729.3320386442.
The spelling of 387950107 in words is "three hundred eighty-seven million, nine hundred fifty thousand, one hundred seven".
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