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82422724 = 22106119421
BaseRepresentation
bin1001110100110…
…10101111000100
312202002111201111
410322122233010
5132100011344
612102334404
72020403326
oct472325704
9182074644
1082422724
114258645a
122372a404
13140cb057
14ad37616
157381834
hex4e9abc4

82422724 has 12 divisors (see below), whose sum is σ = 144383148. Its totient is φ = 41170400.

The previous prime is 82422713. The next prime is 82422733. The reversal of 82422724 is 42722428.

It can be written as a sum of positive squares in 2 ways, for example, as 70862724 + 11560000 = 8418^2 + 3400^2 .

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, 5467 + ... + 13954.

It is an arithmetic number, because the mean of its divisors is an integer number (12031929).

Almost surely, 282422724 is an apocalyptic number.

It is an amenable number.

82422724 is a deficient number, since it is larger than the sum of its proper divisors (61960424).

82422724 is a wasteful number, since it uses less digits than its factorization.

82422724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20486 (or 20484 counting only the distinct ones).

The product of its digits is 14336, while the sum is 31.

The square root of 82422724 is about 9078.6961618946. The cubic root of 82422724 is about 435.1934208316.

The spelling of 82422724 in words is "eighty-two million, four hundred twenty-two thousand, seven hundred twenty-four".

Divisors: 1 2 4 1061 2122 4244 19421 38842 77684 20605681 41211362 82422724