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86305388 = 22131659719
BaseRepresentation
bin1010010010011…
…10101001101100
320000101202201212
411021032221230
5134043233023
612321453552
72065404131
oct511165154
9200352655
1086305388
1144798574
1224aa12b8
1314b5a3a0
14b668588
15789be78
hex524ea6c

86305388 has 12 divisors (see below), whose sum is σ = 162652560. Its totient is φ = 39833232.

The previous prime is 86305381. The next prime is 86305397. The reversal of 86305388 is 88350368.

It is not an unprimeable number, because it can be changed into a prime (86305381) 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 3 ways as a sum of consecutive naturals, for example, 829808 + ... + 829911.

It is an arithmetic number, because the mean of its divisors is an integer number (13554380).

Almost surely, 286305388 is an apocalyptic number.

It is an amenable number.

86305388 is a deficient number, since it is larger than the sum of its proper divisors (76347172).

86305388 is a wasteful number, since it uses less digits than its factorization.

86305388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1659736 (or 1659734 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 86305388 is about 9290.0693215928. The cubic root of 86305388 is about 441.9223534975.

The spelling of 86305388 in words is "eighty-six million, three hundred five thousand, three hundred eighty-eight".

Divisors: 1 2 4 13 26 52 1659719 3319438 6638876 21576347 43152694 86305388