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82805622 = 2313800937
BaseRepresentation
bin1001110111110…
…00001101110110
312202210221221220
410323320031312
5132144234442
612114451210
72023556544
oct473701566
9182727856
1082805622
11428180a9
1223893b06
1314203413
14add6d94
157409eec
hex4ef8376

82805622 has 8 divisors (see below), whose sum is σ = 165611256. Its totient is φ = 27601872.

The previous prime is 82805617. The next prime is 82805633. The reversal of 82805622 is 22650828.

It is a sphenic number, since it is the product of 3 distinct primes.

82805622 is an admirable number.

It is a super-3 number, since 3×828056223 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6900463 + ... + 6900474.

It is an arithmetic number, because the mean of its divisors is an integer number (20701407).

Almost surely, 282805622 is an apocalyptic number.

82805622 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

82805622 is a wasteful number, since it uses less digits than its factorization.

82805622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13800942.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 82805622 is about 9099.7594473700. The cubic root of 82805622 is about 435.8662826763.

The spelling of 82805622 in words is "eighty-two million, eight hundred five thousand, six hundred twenty-two".

Divisors: 1 2 3 6 13800937 27601874 41402811 82805622