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86934428 = 2272443543
BaseRepresentation
bin1010010111010…
…00001110011100
320001120201121122
411023220032130
5134223400203
612343150112
72103634100
oct513501634
9201521548
1086934428
1145088139
1225145338
131501a7b9
14b78d900
157973538
hex52e839c

86934428 has 18 divisors (see below), whose sum is σ = 176974056. Its totient is φ = 37257528.

The previous prime is 86934401. The next prime is 86934439. The reversal of 86934428 is 82443968.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 221576 + ... + 221967.

It is an arithmetic number, because the mean of its divisors is an integer number (9831892).

Almost surely, 286934428 is an apocalyptic number.

It is an amenable number.

86934428 is an abundant number, since it is smaller than the sum of its proper divisors (90039628).

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

86934428 is a wasteful number, since it uses less digits than its factorization.

86934428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443561 (or 443552 counting only the distinct ones).

The product of its digits is 331776, while the sum is 44.

The square root of 86934428 is about 9323.8633623622. The cubic root of 86934428 is about 442.9934113334.

The spelling of 86934428 in words is "eighty-six million, nine hundred thirty-four thousand, four hundred twenty-eight".

Divisors: 1 2 4 7 14 28 49 98 196 443543 887086 1774172 3104801 6209602 12419204 21733607 43467214 86934428