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284288086 = 21071328449
BaseRepresentation
bin10000111100011…
…110010001010110
3201210221022221101
4100330132101112
51040234204321
644113140314
710021260145
oct2074362126
9653838841
10284288086
11136522935
127b25a69a
1346b89404
1429a8375c
1519e58791
hex10f1e456

284288086 has 8 divisors (see below), whose sum is σ = 430417800. Its totient is φ = 140815488.

The previous prime is 284288021. The next prime is 284288087. The reversal of 284288086 is 680882482.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284288087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 664011 + ... + 664438.

It is an arithmetic number, because the mean of its divisors is an integer number (53802225).

Almost surely, 2284288086 is an apocalyptic number.

284288086 is a deficient number, since it is larger than the sum of its proper divisors (146129714).

284288086 is a wasteful number, since it uses less digits than its factorization.

284288086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328558.

The product of its (nonzero) digits is 393216, while the sum is 46.

The square root of 284288086 is about 16860.8447593826. The cubic root of 284288086 is about 657.5360269791.

The spelling of 284288086 in words is "two hundred eighty-four million, two hundred eighty-eight thousand, eighty-six".

Divisors: 1 2 107 214 1328449 2656898 142144043 284288086