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387825 = 3525171
BaseRepresentation
bin1011110101011110001
3201200222220
41132223301
544402300
612151253
73203454
oct1365361
9650886
10387825
11245419
12168529
131076a9
14a149b
1579da0
hex5eaf1

387825 has 12 divisors (see below), whose sum is σ = 641328. Its totient is φ = 206800.

The previous prime is 387799. The next prime is 387839. The reversal of 387825 is 528783.

It is not a de Polignac number, because 387825 - 29 = 387313 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2511 + ... + 2660.

It is an arithmetic number, because the mean of its divisors is an integer number (53444).

2387825 is an apocalyptic number.

It is an amenable number.

387825 is a deficient number, since it is larger than the sum of its proper divisors (253503).

387825 is a wasteful number, since it uses less digits than its factorization.

387825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5184 (or 5179 counting only the distinct ones).

The product of its digits is 13440, while the sum is 33.

The square root of 387825 is about 622.7559714688. The cubic root of 387825 is about 72.9253631351.

The spelling of 387825 in words is "three hundred eighty-seven thousand, eight hundred twenty-five".

Divisors: 1 3 5 15 25 75 5171 15513 25855 77565 129275 387825