Base | Representation |
---|---|
bin | 1011110100100011011 |
3 | 201200100111 |
4 | 1132210123 |
5 | 44343410 |
6 | 12145151 |
7 | 3202213 |
oct | 1364433 |
9 | 650314 |
10 | 387355 |
11 | 245031 |
12 | 1681b7 |
13 | 107407 |
14 | a1243 |
15 | 79b8a |
hex | 5e91b |
387355 has 4 divisors (see below), whose sum is σ = 464832. Its totient is φ = 309880.
The previous prime is 387341. The next prime is 387371. The reversal of 387355 is 553783.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 553783 = 101 ⋅5483.
It is not a de Polignac number, because 387355 - 27 = 387227 is a prime.
It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is an Ulam number.
It is a Duffinian number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38731 + ... + 38740.
It is an arithmetic number, because the mean of its divisors is an integer number (116208).
2387355 is an apocalyptic number.
387355 is a deficient number, since it is larger than the sum of its proper divisors (77477).
387355 is an equidigital number, since it uses as much as digits as its factorization.
387355 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 77476.
The product of its digits is 12600, while the sum is 31.
The square root of 387355 is about 622.3785021994. The cubic root of 387355 is about 72.8958921316.
The spelling of 387355 in words is "three hundred eighty-seven thousand, three hundred fifty-five".
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