Base | Representation |
---|---|
bin | 10001111010011000… |
… | …101000100101001001 |
3 | 1211122101120002222112 |
4 | 101322120220211021 |
5 | 303342141202314 |
6 | 12500253032105 |
7 | 1250421024323 |
oct | 217230504511 |
9 | 54571502875 |
10 | 19233147209 |
11 | 817a679191 |
12 | 3889185635 |
13 | 1a7685c3a3 |
14 | d06508613 |
15 | 77879043e |
hex | 47a628949 |
19233147209 has 8 divisors (see below), whose sum is σ = 19255874880. Its totient is φ = 19210436496.
The previous prime is 19233147203. The next prime is 19233147229. The reversal of 19233147209 is 90274133291.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 19233147209 - 212 = 19233143113 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (19233147203) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4797884 + ... + 4801890.
It is an arithmetic number, because the mean of its divisors is an integer number (2406984360).
Almost surely, 219233147209 is an apocalyptic number.
It is an amenable number.
19233147209 is a deficient number, since it is larger than the sum of its proper divisors (22727671).
19233147209 is a wasteful number, since it uses less digits than its factorization.
19233147209 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8479.
The product of its (nonzero) digits is 81648, while the sum is 41.
The spelling of 19233147209 in words is "nineteen billion, two hundred thirty-three million, one hundred forty-seven thousand, two hundred nine".
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