Base | Representation |
---|---|
bin | 1010011100110010… |
… | …1111100100011001 |
3 | 21020111100122200122 |
4 | 2213030233210121 |
5 | 21221103320031 |
6 | 1142203443025 |
7 | 126341155010 |
oct | 24714574431 |
9 | 7214318618 |
10 | 2805135641 |
11 | 120a475a20 |
12 | 663526475 |
13 | 359207999 |
14 | 1c879da77 |
15 | 11640147b |
hex | a732f919 |
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".
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