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82347055 = 5747113443
BaseRepresentation
bin1001110100010…
…00010000101111
312201221122220221
410322020100233
5132040101210
612100552211
72016636610
oct472102057
9181848827
1082347055
114253461a
12236b2667
13140a278b
14ad17c07
1573691da
hex4e8842f

82347055 has 32 divisors (see below), whose sum is σ = 116619264. Its totient is φ = 54652416.

The previous prime is 82347053. The next prime is 82347059. The reversal of 82347055 is 55074328.

It is a happy number.

It is not a de Polignac number, because 82347055 - 21 = 82347053 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82347055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82347053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 185664 + ... + 186106.

It is an arithmetic number, because the mean of its divisors is an integer number (3644352).

Almost surely, 282347055 is an apocalyptic number.

82347055 is a deficient number, since it is larger than the sum of its proper divisors (34272209).

82347055 is a wasteful number, since it uses less digits than its factorization.

82347055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 82347055 is about 9074.5278114070. The cubic root of 82347055 is about 435.0602021757.

The spelling of 82347055 in words is "eighty-two million, three hundred forty-seven thousand, fifty-five".

Divisors: 1 5 7 35 47 113 235 329 443 565 791 1645 2215 3101 3955 5311 15505 20821 26555 37177 50059 104105 145747 185885 250295 350413 728735 1752065 2352773 11763865 16469411 82347055