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286528214 = 2720466301
BaseRepresentation
bin10001000101000…
…001001011010110
3201222011010211002
4101011001023112
51041322400324
644233143302
710046310140
oct2105011326
9658133732
10286528214
11137812985
127bb5ab32
1347491c2b
142a0a7c90
151a24c3ae
hex111412d6

286528214 has 8 divisors (see below), whose sum is σ = 491191248. Its totient is φ = 122797800.

The previous prime is 286528211. The next prime is 286528219. The reversal of 286528214 is 412825682.

286528214 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 (286528211) 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, 10233137 + ... + 10233164.

It is an arithmetic number, because the mean of its divisors is an integer number (61398906).

Almost surely, 2286528214 is an apocalyptic number.

286528214 is a deficient number, since it is larger than the sum of its proper divisors (204663034).

286528214 is a wasteful number, since it uses less digits than its factorization.

286528214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20466310.

The product of its digits is 61440, while the sum is 38.

The square root of 286528214 is about 16927.1442954800. The cubic root of 286528214 is about 659.2585904692.

The spelling of 286528214 in words is "two hundred eighty-six million, five hundred twenty-eight thousand, two hundred fourteen".

Divisors: 1 2 7 14 20466301 40932602 143264107 286528214