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82010215 = 573317079
BaseRepresentation
bin1001110001101…
…10000001100111
312201022112212101
410320312001213
5131443311330
612045432531
72014034560
oct470660147
9181275771
1082010215
1142324541
122356b747
1313cb5371
14ac6b167
1572ee4ca
hex4e36067

82010215 has 16 divisors (see below), whose sum is σ = 112826880. Its totient is φ = 56057760.

The previous prime is 82010197. The next prime is 82010219. The reversal of 82010215 is 51201028.

It is not a de Polignac number, because 82010215 - 27 = 82010087 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82010192 and 82010201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82010219) 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 15 ways as a sum of consecutive naturals, for example, 8046 + ... + 15124.

It is an arithmetic number, because the mean of its divisors is an integer number (7051680).

Almost surely, 282010215 is an apocalyptic number.

82010215 is a deficient number, since it is larger than the sum of its proper divisors (30816665).

82010215 is a wasteful number, since it uses less digits than its factorization.

82010215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7422.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 82010215 is about 9055.9491495922. The cubic root of 82010215 is about 434.4661880223.

The spelling of 82010215 in words is "eighty-two million, ten thousand, two hundred fifteen".

Divisors: 1 5 7 35 331 1655 2317 7079 11585 35395 49553 247765 2343149 11715745 16402043 82010215