Base | Representation |
---|---|
bin | 10010101000000111… |
… | …010001100000011001 |
3 | 1220121212011221212111 |
4 | 102220013101200121 |
5 | 311430042120220 |
6 | 13104340512321 |
7 | 1305425104006 |
oct | 225007214031 |
9 | 56555157774 |
10 | 20000348185 |
11 | 8533747684 |
12 | 3a620ab6a1 |
13 | 1b6979a26c |
14 | d7a3768ad |
15 | 7c0cd915a |
hex | 4a81d1819 |
20000348185 has 16 divisors (see below), whose sum is σ = 24117984000. Its totient is φ = 15921976896.
The previous prime is 20000348143. The next prime is 20000348209. The reversal of 20000348185 is 58184300002.
It is a cyclic number.
It is not a de Polignac number, because 20000348185 - 231 = 17852864537 is a prime.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3027516 + ... + 3034114.
It is an arithmetic number, because the mean of its divisors is an integer number (1507374000).
Almost surely, 220000348185 is an apocalyptic number.
It is an amenable number.
20000348185 is a deficient number, since it is larger than the sum of its proper divisors (4117635815).
20000348185 is a wasteful number, since it uses less digits than its factorization.
20000348185 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9480.
The product of its (nonzero) digits is 7680, while the sum is 31.
Adding to 20000348185 its reverse (58184300002), we get a palindrome (78184648187).
The spelling of 20000348185 in words is "twenty billion, three hundred forty-eight thousand, one hundred eighty-five".
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