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286142850 = 232527219683
BaseRepresentation
bin10001000011100…
…011000110000010
3201221102120012100
4101003203012002
51041223032400
644221011230
710043113500
oct2103430602
9657376170
10286142850
1113757a3a4
127b9b3b16
13473886c6
142a007670
151a1c3100
hex110e3182

286142850 has 216 divisors, whose sum is σ = 942729840. Its totient is φ = 61871040.

The previous prime is 286142837. The next prime is 286142881. The reversal of 286142850 is 58241682.

286142850 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2861428502 = 163755461212245000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 418609 + ... + 419291.

It is an arithmetic number, because the mean of its divisors is an integer number (4364490).

Almost surely, 2286142850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 286142850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (471364920).

286142850 is an abundant number, since it is smaller than the sum of its proper divisors (656586990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

286142850 is a wasteful number, since it uses less digits than its factorization.

286142850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734 (or 719 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 286142850 is about 16915.7574468305. The cubic root of 286142850 is about 658.9629028819.

The spelling of 286142850 in words is "two hundred eighty-six million, one hundred forty-two thousand, eight hundred fifty".