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82049005 = 579207719
BaseRepresentation
bin1001110001111…
…11011111101101
312201101112002001
410320333133231
5132001032010
612050332301
72014255633
oct470773755
9181345061
1082049005
11423506a5
122358a091
1313cc9c0c
14ac7b353
15730ac3a
hex4e3f7ed

82049005 has 8 divisors (see below), whose sum is σ = 99705600. Its totient is φ = 64808016.

The previous prime is 82048997. The next prime is 82049029. The reversal of 82049005 is 50094028.

It is a happy number.

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 82049005 - 23 = 82048997 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 (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103465 + ... + 104254.

It is an arithmetic number, because the mean of its divisors is an integer number (12463200).

Almost surely, 282049005 is an apocalyptic number.

It is an amenable number.

82049005 is a deficient number, since it is larger than the sum of its proper divisors (17656595).

82049005 is a wasteful number, since it uses less digits than its factorization.

82049005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207803.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 82049005 is about 9058.0905824572. The cubic root of 82049005 is about 434.5346765922.

The spelling of 82049005 in words is "eighty-two million, forty-nine thousand, five".

Divisors: 1 5 79 395 207719 1038595 16409801 82049005