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286914417021 = 32193165178133
BaseRepresentation
bin1000010110011010110…
…11101001000101111101
31000102120120002112111200
410023031123221011331
514200100042321041
6335450123410113
726505002206551
oct4131533510575
91012516075450
10286914417021
11100752788111
1247733083939
1321095ac35bb
14dc5b299861
1576e39a41b6
hex42cd6e917d

286914417021 has 12 divisors (see below), whose sum is σ = 416579253948. Its totient is φ = 190285208064.

The previous prime is 286914417019. The next prime is 286914417043. The reversal of 286914417021 is 120714419682.

It can be written as a sum of positive squares in 2 ways, for example, as 128550214521 + 158364202500 = 358539^2 + 397950^2 .

It is not a de Polignac number, because 286914417021 - 21 = 286914417019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286914417061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82587330 + ... + 82590803.

It is an arithmetic number, because the mean of its divisors is an integer number (34714937829).

Almost surely, 2286914417021 is an apocalyptic number.

It is an amenable number.

286914417021 is a deficient number, since it is larger than the sum of its proper divisors (129664836927).

286914417021 is a wasteful number, since it uses less digits than its factorization.

286914417021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165178332 (or 165178329 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 286914417021 in words is "two hundred eighty-six billion, nine hundred fourteen million, four hundred seventeen thousand, twenty-one".

Divisors: 1 3 9 193 579 1737 165178133 495534399 1486603197 31879379669 95638139007 286914417021