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85064860 = 2254439601
BaseRepresentation
bin1010001000111…
…11110010011100
312221001202001101
411010133302130
5133234033420
612235122444
72052016336
oct504376234
9187052041
1085064860
1144020541
12245a3424
131481484a
14b424456
15770460a
hex511fc9c

85064860 has 24 divisors (see below), whose sum is σ = 179058096. Its totient is φ = 33945600.

The previous prime is 85064857. The next prime is 85064867. The reversal of 85064860 is 6846058.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85064867) 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, 4060 + ... + 13660.

It is an arithmetic number, because the mean of its divisors is an integer number (7460754).

Almost surely, 285064860 is an apocalyptic number.

It is an amenable number.

85064860 is an abundant number, since it is smaller than the sum of its proper divisors (93993236).

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

85064860 is a wasteful number, since it uses less digits than its factorization.

85064860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10053 (or 10051 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 85064860 is about 9223.0613139022. The cubic root of 85064860 is about 439.7947734383.

It can be divided in two parts, 8506 and 4860, that added together give a triangular number (13366 = T163).

The spelling of 85064860 in words is "eighty-five million, sixty-four thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 443 886 1772 2215 4430 8860 9601 19202 38404 48005 96010 192020 4253243 8506486 17012972 21266215 42532430 85064860