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285728006 = 2844316921
BaseRepresentation
bin10001000001111…
…101110100000110
3201220122111010202
4101001331310012
51041121244011
644204050502
710036435154
oct2101756406
9656574122
10285728006
11137316753
127b833a32
1347271935
1429d3a3d4
151a14023b
hex1107dd06

285728006 has 8 divisors (see below), whose sum is σ = 428668104. Its totient is φ = 142838640.

The previous prime is 285727987. The next prime is 285728017. The reversal of 285728006 is 600827582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8426 + ... + 25346.

It is an arithmetic number, because the mean of its divisors is an integer number (53583513).

Almost surely, 2285728006 is an apocalyptic number.

285728006 is a deficient number, since it is larger than the sum of its proper divisors (142940098).

285728006 is a wasteful number, since it uses less digits than its factorization.

285728006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25366.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 285728006 is about 16903.4909412228. The cubic root of 285728006 is about 658.6442985901.

The spelling of 285728006 in words is "two hundred eighty-five million, seven hundred twenty-eight thousand, six".

Divisors: 1 2 8443 16886 16921 33842 142864003 285728006