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285086002 = 2278951109
BaseRepresentation
bin10000111111100…
…001000100110010
3201212102212110211
4100333201010302
51040440223002
644142214334
710031122345
oct2077410462
9655385424
10285086002
11136a18373
127b5843aa
13470a8656
1429c1045c
151a064dd7
hex10fe1132

285086002 has 8 divisors (see below), whose sum is σ = 427790700. Its totient is φ = 142489104.

The previous prime is 285085981. The next prime is 285086003. The reversal of 285086002 is 200680582.

It can be written as a sum of positive squares in 2 ways, for example, as 249671601 + 35414401 = 15801^2 + 5951^2 .

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

It is not an unprimeable number, because it can be changed into a prime (285086003) by changing a digit.

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, 19977 + ... + 31132.

Almost surely, 2285086002 is an apocalyptic number.

285086002 is a deficient number, since it is larger than the sum of its proper divisors (142704698).

285086002 is a wasteful number, since it uses less digits than its factorization.

285086002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53900.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 285086002 is about 16884.4899834138. The cubic root of 285086002 is about 658.1506246946.

The spelling of 285086002 in words is "two hundred eighty-five million, eighty-six thousand, two".

Divisors: 1 2 2789 5578 51109 102218 142543001 285086002