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2805135641 = 711199183067
BaseRepresentation
bin1010011100110010…
…1111100100011001
321020111100122200122
42213030233210121
521221103320031
61142203443025
7126341155010
oct24714574431
97214318618
102805135641
11120a475a20
12663526475
13359207999
141c879da77
1511640147b
hexa732f919

2805135641 has 16 divisors (see below), whose sum is σ = 3514905600. Its totient is φ = 2174824080.

The previous prime is 2805135583. The next prime is 2805135653. The reversal of 2805135641 is 1465315082.

It is not a de Polignac number, because 2805135641 - 214 = 2805119257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2805135241) 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, 76211 + ... + 106856.

It is an arithmetic number, because the mean of its divisors is an integer number (219681600).

Almost surely, 22805135641 is an apocalyptic number.

It is an amenable number.

2805135641 is a deficient number, since it is larger than the sum of its proper divisors (709769959).

2805135641 is a wasteful number, since it uses less digits than its factorization.

2805135641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183284.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 2805135641 is about 52963.5312361251. The cubic root of 2805135641 is about 1410.3209438251.

The spelling of 2805135641 in words is "two billion, eight hundred five million, one hundred thirty-five thousand, six hundred forty-one".

Divisors: 1 7 11 77 199 1393 2189 15323 183067 1281469 2013737 14096159 36430333 255012331 400733663 2805135641