Base | Representation |
---|---|
bin | 1011110001100001111 |
3 | 201121020011 |
4 | 1132030033 |
5 | 44321212 |
6 | 12134051 |
7 | 3164542 |
oct | 1361417 |
9 | 647204 |
10 | 385807 |
11 | 243954 |
12 | 167327 |
13 | 1067b6 |
14 | a0859 |
15 | 794a7 |
hex | 5e30f |
385807 has 4 divisors (see below), whose sum is σ = 388000. Its totient is φ = 383616.
The previous prime is 385793. The next prime is 385811. The reversal of 385807 is 708583.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 385807 - 211 = 383759 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (385817) by changing a digit.
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, 807 + ... + 1192.
It is an arithmetic number, because the mean of its divisors is an integer number (97000).
2385807 is an apocalyptic number.
385807 is a deficient number, since it is larger than the sum of its proper divisors (2193).
385807 is a wasteful number, since it uses less digits than its factorization.
385807 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2192.
The product of its (nonzero) digits is 6720, while the sum is 31.
The square root of 385807 is about 621.1336410146. The cubic root of 385807 is about 72.7986570416.
The spelling of 385807 in words is "three hundred eighty-five thousand, eight hundred seven".
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