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82102375 = 53656819
BaseRepresentation
bin1001110010011…
…00100001100111
312201111020021201
410321030201213
5132004234000
612051423331
72014600345
oct471144147
9181436251
1082102375
1142387803
12235b4b47
13140182b4
14ac92995
15731b96a
hex4e4c867

82102375 has 8 divisors (see below), whose sum is σ = 102463920. Its totient is φ = 65681800.

The previous prime is 82102369. The next prime is 82102381. The reversal of 82102375 is 57320128.

It is an interprime number because it is at equal distance from previous prime (82102369) and next prime (82102381).

It is not a de Polignac number, because 82102375 - 217 = 81971303 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 328285 + ... + 328534.

It is an arithmetic number, because the mean of its divisors is an integer number (12807990).

Almost surely, 282102375 is an apocalyptic number.

82102375 is a deficient number, since it is larger than the sum of its proper divisors (20361545).

82102375 is an equidigital number, since it uses as much as digits as its factorization.

82102375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656834 (or 656824 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 82102375 is about 9061.0360886601. The cubic root of 82102375 is about 434.6288726936.

It can be divided in two parts, 8210 and 2375, that added together give a triangular number (10585 = T145).

The spelling of 82102375 in words is "eighty-two million, one hundred two thousand, three hundred seventy-five".

Divisors: 1 5 25 125 656819 3284095 16420475 82102375