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2808071 = 7467859
BaseRepresentation
bin1010101101100100000111
312021122221122
422231210013
51204324241
6140104155
732603540
oct12554407
95248848
102808071
111648822
12b3505b
137741a6
145314c7
153a704b
hex2ad907

2808071 has 8 divisors (see below), whose sum is σ = 3219840. Its totient is φ = 2398968.

The previous prime is 2808061. The next prime is 2808079. The reversal of 2808071 is 1708082.

2808071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2808071 - 26 = 2808007 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 2808071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2808079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2840 + ... + 3698.

It is an arithmetic number, because the mean of its divisors is an integer number (402480).

22808071 is an apocalyptic number.

2808071 is a deficient number, since it is larger than the sum of its proper divisors (411769).

2808071 is an equidigital number, since it uses as much as digits as its factorization.

2808071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333.

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 2808071 is about 1675.7299901834. The cubic root of 2808071 is about 141.0812703185.

The spelling of 2808071 in words is "two million, eight hundred eight thousand, seventy-one".

Divisors: 1 7 467 859 3269 6013 401153 2808071