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85265789 = 716374729
BaseRepresentation
bin1010001010100…
…00110101111101
312221102221200012
411011100311331
5133312001124
612243313005
72053514210
oct505206575
9187387605
1085265789
11441484a4
122467b765
131488513b
14b477777
157743e0e
hex5150d7d

85265789 has 8 divisors (see below), whose sum is σ = 98045760. Its totient is φ = 72635616.

The previous prime is 85265783. The next prime is 85265801. The reversal of 85265789 is 98756258.

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

It is a cyclic number.

It is not a de Polignac number, because 85265789 - 216 = 85200253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85265783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36224 + ... + 38505.

It is an arithmetic number, because the mean of its divisors is an integer number (12255720).

Almost surely, 285265789 is an apocalyptic number.

It is an amenable number.

85265789 is a deficient number, since it is larger than the sum of its proper divisors (12779971).

85265789 is a wasteful number, since it uses less digits than its factorization.

85265789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74899.

The product of its digits is 1209600, while the sum is 50.

The square root of 85265789 is about 9233.9476390112. The cubic root of 85265789 is about 440.1407762354.

The spelling of 85265789 in words is "eighty-five million, two hundred sixty-five thousand, seven hundred eighty-nine".

Divisors: 1 7 163 1141 74729 523103 12180827 85265789