Base | Representation |
---|---|
bin | 11101001011100011101… |
… | …100010101101000001101 |
3 | 21002200222001100000012111 |
4 | 131023203230111220031 |
5 | 230323300322422033 |
6 | 4133113250304021 |
7 | 264606402441334 |
oct | 35134354255015 |
9 | 7080861300174 |
10 | 2005274810893 |
11 | 703483398332 |
12 | 284776588011 |
13 | 117134311753 |
14 | 6d0ad248d1b |
15 | 372661197cd |
hex | 1d2e3b15a0d |
2005274810893 has 2 divisors, whose sum is σ = 2005274810894. Its totient is φ = 2005274810892.
The previous prime is 2005274810857. The next prime is 2005274810909. The reversal of 2005274810893 is 3980184725002.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1488431720169 + 516843090724 = 1220013^2 + 718918^2 .
It is a cyclic number.
It is not a de Polignac number, because 2005274810893 - 225 = 2005241256461 is a prime.
It is a super-2 number, since 2×20052748108932 (a number of 25 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2005274810993) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002637405446 + 1002637405447.
It is an arithmetic number, because the mean of its divisors is an integer number (1002637405447).
Almost surely, 22005274810893 is an apocalyptic number.
It is an amenable number.
2005274810893 is a deficient number, since it is larger than the sum of its proper divisors (1).
2005274810893 is an equidigital number, since it uses as much as digits as its factorization.
2005274810893 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 967680, while the sum is 49.
The spelling of 2005274810893 in words is "two trillion, five billion, two hundred seventy-four million, eight hundred ten thousand, eight hundred ninety-three".
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