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85502680 = 2352817607
BaseRepresentation
bin1010001100010…
…10101011011000
312221212222121221
411012022223120
5133342041210
612252341424
72055521644
oct506125330
9187788557
1085502680
114429a47a
1224774874
1314938c03
14b4d9c24
15778e1da
hex518aad8

85502680 has 32 divisors (see below), whose sum is σ = 193091040. Its totient is φ = 34074880.

The previous prime is 85502611. The next prime is 85502719. The reversal of 85502680 is 8620558.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7437 + ... + 15043.

It is an arithmetic number, because the mean of its divisors is an integer number (6034095).

Almost surely, 285502680 is an apocalyptic number.

It is an amenable number.

85502680 is an abundant number, since it is smaller than the sum of its proper divisors (107588360).

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

85502680 is a wasteful number, since it uses less digits than its factorization.

85502680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7899 (or 7895 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 85502680 is about 9246.7659211207. The cubic root of 85502680 is about 440.5480086461.

The spelling of 85502680 in words is "eighty-five million, five hundred two thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 281 562 1124 1405 2248 2810 5620 7607 11240 15214 30428 38035 60856 76070 152140 304280 2137567 4275134 8550268 10687835 17100536 21375670 42751340 85502680