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85288120 = 235103127163
BaseRepresentation
bin1010001010101…
…10010010111000
312221111002022021
411011112102320
5133313204440
612244004224
72053636261
oct505262270
9187432267
1085288120
1144163255
1224690674
1314892358
14b481968
15774a84a
hex51564b8

85288120 has 64 divisors (see below), whose sum is σ = 196485120. Its totient is φ = 33312384.

The previous prime is 85288103. The next prime is 85288121. The reversal of 85288120 is 2188258.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85288121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 523159 + ... + 523321.

It is an arithmetic number, because the mean of its divisors is an integer number (3070080).

Almost surely, 285288120 is an apocalyptic number.

It is an amenable number.

85288120 is an abundant number, since it is smaller than the sum of its proper divisors (111197000).

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

85288120 is a wasteful number, since it uses less digits than its factorization.

85288120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404 (or 400 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 34.

The square root of 85288120 is about 9235.1567393304. The cubic root of 85288120 is about 440.1791969817.

The spelling of 85288120 in words is "eighty-five million, two hundred eighty-eight thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 103 127 163 206 254 326 412 508 515 635 652 815 824 1016 1030 1270 1304 1630 2060 2540 3260 4120 5080 6520 13081 16789 20701 26162 33578 41402 52324 65405 67156 82804 83945 103505 104648 130810 134312 165608 167890 207010 261620 335780 414020 523240 671560 828040 2132203 4264406 8528812 10661015 17057624 21322030 42644060 85288120