Base | Representation |
---|---|
bin | 111011011001101… |
… | …1000110000000000 |
3 | 12010220112010222021 |
4 | 1312303120300000 |
5 | 13040223312313 |
6 | 525440451224 |
7 | 100251524563 |
oct | 16663306000 |
9 | 5126463867 |
10 | 1993182208 |
11 | 933110326 |
12 | 477619b14 |
13 | 259c2b074 |
14 | 14ca024da |
15 | b9eb778d |
hex | 76cd8c00 |
1993182208 has 44 divisors (see below), whose sum is σ = 4157702640. Its totient is φ = 953249792.
The previous prime is 1993182203. The next prime is 1993182223. The reversal of 1993182208 is 8022813991.
It is not an unprimeable number, because it can be changed into a prime (1993182203) by changing a digit.
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 3 ways as a sum of consecutive naturals, for example, 18763 + ... + 65866.
Almost surely, 21993182208 is an apocalyptic number.
It is an amenable number.
1993182208 is an abundant number, since it is smaller than the sum of its proper divisors (2164520432).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1993182208 is an equidigital number, since it uses as much as digits as its factorization.
1993182208 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 84672 (or 84654 counting only the distinct ones).
The product of its (nonzero) digits is 62208, while the sum is 43.
The square root of 1993182208 is about 44645.0692462225. The cubic root of 1993182208 is about 1258.4877734198.
The spelling of 1993182208 in words is "one billion, nine hundred ninety-three million, one hundred eighty-two thousand, two hundred eight".
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