Base | Representation |
---|---|
bin | 10111000111111… |
… | …010011000111101 |
3 | 1000000222220112202 |
4 | 113013322120331 |
5 | 1243303401031 |
6 | 102255041245 |
7 | 12420343655 |
oct | 2707723075 |
9 | 1000886482 |
10 | 387950141 |
11 | 189a95757 |
12 | a9b10225 |
13 | 624b29c7 |
14 | 39749365 |
15 | 240d32cb |
hex | 171fa63d |
387950141 has 2 divisors, whose sum is σ = 387950142. Its totient is φ = 387950140.
The previous prime is 387950107. The next prime is 387950207. The reversal of 387950141 is 141059783.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 359102500 + 28847641 = 18950^2 + 5371^2 .
It is an emirp because it is prime and its reverse (141059783) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 387950141 - 210 = 387949117 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 387950095 and 387950104.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (387940141) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193975070 + 193975071.
It is an arithmetic number, because the mean of its divisors is an integer number (193975071).
Almost surely, 2387950141 is an apocalyptic number.
It is an amenable number.
387950141 is a deficient number, since it is larger than the sum of its proper divisors (1).
387950141 is an equidigital number, since it uses as much as digits as its factorization.
387950141 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 30240, while the sum is 38.
The square root of 387950141 is about 19696.4499593201. The cubic root of 387950141 is about 729.3320599505.
The spelling of 387950141 in words is "three hundred eighty-seven million, nine hundred fifty thousand, one hundred forty-one".
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