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85043750 = 255111237
BaseRepresentation
bin1010001000110…
…10101000100110
312221000200002112
411010122220212
5133232400000
612234441022
72051600651
oct504325046
9187020075
1085043750
11440066a0
1224593172
131480805c
14b41a898
1576ed235
hex511aa26

85043750 has 48 divisors (see below), whose sum is σ = 174082608. Its totient is φ = 30900000.

The previous prime is 85043711. The next prime is 85043773. The reversal of 85043750 is 5734058.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68132 + ... + 69368.

It is an arithmetic number, because the mean of its divisors is an integer number (3626721).

Almost surely, 285043750 is an apocalyptic number.

85043750 is an abundant number, since it is smaller than the sum of its proper divisors (89038858).

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

85043750 is a wasteful number, since it uses less digits than its factorization.

85043750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275 (or 1255 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 85043750 is about 9221.9168289461. The cubic root of 85043750 is about 439.7583900803.

The spelling of 85043750 in words is "eighty-five million, forty-three thousand, seven hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 125 250 275 550 625 1237 1250 1375 2474 2750 3125 6185 6250 6875 12370 13607 13750 27214 30925 34375 61850 68035 68750 136070 154625 309250 340175 680350 773125 1546250 1700875 3401750 3865625 7731250 8504375 17008750 42521875 85043750