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82002685 = 5160910193
BaseRepresentation
bin1001110001101…
…00001011111101
312201022011112111
410320310023331
5131443041220
612045334021
72014003612
oct470641375
9181264474
1082002685
1142319916
1223567311
1313cb1acb
14ac68509
1572ec15a
hex4e342fd

82002685 has 8 divisors (see below), whose sum is σ = 98474040. Its totient is φ = 65554944.

The previous prime is 82002673. The next prime is 82002737. The reversal of 82002685 is 58620028.

It can be written as a sum of positive squares in 4 ways, for example, as 38204761 + 43797924 = 6181^2 + 6618^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82002685 - 25 = 82002653 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2949 + ... + 13141.

It is an arithmetic number, because the mean of its divisors is an integer number (12309255).

Almost surely, 282002685 is an apocalyptic number.

It is an amenable number.

82002685 is a deficient number, since it is larger than the sum of its proper divisors (16471355).

82002685 is a wasteful number, since it uses less digits than its factorization.

82002685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11807.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 82002685 is about 9055.5333912476. The cubic root of 82002685 is about 434.4528903677.

The spelling of 82002685 in words is "eighty-two million, two thousand, six hundred eighty-five".

Divisors: 1 5 1609 8045 10193 50965 16400537 82002685