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2805214841 = 1113163120349
BaseRepresentation
bin1010011100110100…
…0010111001111001
321020111111200022222
42213031002321321
521221113333331
61142205253425
7126341634632
oct24715027171
97214450288
102805214841
11120a51a480
12663564275
13359234a50
141c87c0889
15116419b7b
hexa7342e79

2805214841 has 16 divisors (see below), whose sum is σ = 3315883200. Its totient is φ = 2339565120.

The previous prime is 2805214823. The next prime is 2805214861. The reversal of 2805214841 is 1484125082.

It is a cyclic number.

It is not a de Polignac number, because 2805214841 - 226 = 2738105977 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2805214861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36866 + ... + 83483.

It is an arithmetic number, because the mean of its divisors is an integer number (207242700).

Almost surely, 22805214841 is an apocalyptic number.

It is an amenable number.

2805214841 is a deficient number, since it is larger than the sum of its proper divisors (510668359).

2805214841 is a wasteful number, since it uses less digits than its factorization.

2805214841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120536.

The product of its (nonzero) digits is 20480, while the sum is 35.

The square root of 2805214841 is about 52964.2789151330. The cubic root of 2805214841 is about 1410.3342166672.

The spelling of 2805214841 in words is "two billion, eight hundred five million, two hundred fourteen thousand, eight hundred forty-one".

Divisors: 1 11 13 143 163 1793 2119 23309 120349 1323839 1564537 17209907 19616887 215785757 255019531 2805214841