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85527180 = 22325475151
BaseRepresentation
bin1010001100100…
…00101010001100
312221221020020100
411012100222030
5133343332210
612253051100
72055653244
oct506205214
9187836210
1085527180
1144306922
1224786a90
13149470cb
14b504b24
1577965c0
hex5190a8c

85527180 has 36 divisors (see below), whose sum is σ = 259432992. Its totient is φ = 22807200.

The previous prime is 85527161. The next prime is 85527181. The reversal of 85527180 is 8172558.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (85527181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 237396 + ... + 237755.

It is an arithmetic number, because the mean of its divisors is an integer number (7206472).

Almost surely, 285527180 is an apocalyptic number.

It is an amenable number.

85527180 is an abundant number, since it is smaller than the sum of its proper divisors (173905812).

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

85527180 is a wasteful number, since it uses less digits than its factorization.

85527180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475166 (or 475161 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The square root of 85527180 is about 9248.0906137429. The cubic root of 85527180 is about 440.5900829431.

The spelling of 85527180 in words is "eighty-five million, five hundred twenty-seven thousand, one hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 475151 950302 1425453 1900604 2375755 2850906 4276359 4751510 5701812 7127265 8552718 9503020 14254530 17105436 21381795 28509060 42763590 85527180