Base | Representation |
---|---|
bin | 10110100111101… |
… | …100100101011011 |
3 | 222110002211222021 |
4 | 112213230211123 |
5 | 1234123124422 |
6 | 101354035311 |
7 | 12255511351 |
oct | 2647544533 |
9 | 873084867 |
10 | 379504987 |
11 | 185247794 |
12 | a7118b37 |
13 | 60816a84 |
14 | 3858b7d1 |
15 | 234b5dc7 |
hex | 169ec95b |
379504987 has 2 divisors, whose sum is σ = 379504988. Its totient is φ = 379504986.
The previous prime is 379504943. The next prime is 379504997. The reversal of 379504987 is 789405973.
It is a strong prime.
It is an emirp because it is prime and its reverse (789405973) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 379504987 - 27 = 379504859 is a prime.
It is not a weakly prime, because it can be changed into another prime (379504907) 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, 189752493 + 189752494.
It is an arithmetic number, because the mean of its divisors is an integer number (189752494).
Almost surely, 2379504987 is an apocalyptic number.
379504987 is a deficient number, since it is larger than the sum of its proper divisors (1).
379504987 is an equidigital number, since it uses as much as digits as its factorization.
379504987 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1905120, while the sum is 52.
The square root of 379504987 is about 19480.8877364457. The cubic root of 379504987 is about 724.0009939396. Note that the first 3 decimals are identical.
The spelling of 379504987 in words is "three hundred seventy-nine million, five hundred four thousand, nine hundred eighty-seven".
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