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86132825 = 5218011913
BaseRepresentation
bin1010010001001…
…00100001011001
320000002000000122
411020210201121
5134022222300
612314043025
72064055052
oct510444131
9200060018
1086132825
114468a959
1224a19475
1314ac998c
14b621729
157865c85
hex5224859

86132825 has 12 divisors (see below), whose sum is σ = 106919868. Its totient is φ = 68832000.

The previous prime is 86132821. The next prime is 86132843. The reversal of 86132825 is 52823168.

It can be written as a sum of positive squares in 6 ways, for example, as 1713481 + 84419344 = 1309^2 + 9188^2 .

It is not a de Polignac number, because 86132825 - 22 = 86132821 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (86132821) 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, 44069 + ... + 45981.

It is an arithmetic number, because the mean of its divisors is an integer number (8909989).

Almost surely, 286132825 is an apocalyptic number.

It is an amenable number.

86132825 is a deficient number, since it is larger than the sum of its proper divisors (20787043).

86132825 is a wasteful number, since it uses less digits than its factorization.

86132825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3724 (or 3719 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The square root of 86132825 is about 9280.7771765084. Note that the first 3 decimals coincide. The cubic root of 86132825 is about 441.6276236204.

The spelling of 86132825 in words is "eighty-six million, one hundred thirty-two thousand, eight hundred twenty-five".

Divisors: 1 5 25 1801 1913 9005 9565 45025 47825 3445313 17226565 86132825