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85166950 = 25211154849
BaseRepresentation
bin1010001001110…
…00101101100110
312221020221002111
411010320231212
5133300320300
612241231234
72052623101
oct504705546
9187227074
1085166950
1144090210
122463251a
131484c15b
14b44d738
1577249ba
hex5138b66

85166950 has 24 divisors (see below), whose sum is σ = 172812600. Its totient is φ = 30969600.

The previous prime is 85166929. The next prime is 85166959. The reversal of 85166950 is 5966158.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85166959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76875 + ... + 77974.

It is an arithmetic number, because the mean of its divisors is an integer number (7200525).

Almost surely, 285166950 is an apocalyptic number.

85166950 is an abundant number, since it is smaller than the sum of its proper divisors (87645650).

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

85166950 is a wasteful number, since it uses less digits than its factorization.

85166950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154872 (or 154867 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 85166950 is about 9228.5941507902. The cubic root of 85166950 is about 439.9706419806.

The spelling of 85166950 in words is "eighty-five million, one hundred sixty-six thousand, nine hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 275 550 154849 309698 774245 1548490 1703339 3406678 3871225 7742450 8516695 17033390 42583475 85166950