Base | Representation |
---|---|
bin | 10001111010011000… |
… | …101000100101001000 |
3 | 1211122101120002222111 |
4 | 101322120220211020 |
5 | 303342141202313 |
6 | 12500253032104 |
7 | 1250421024322 |
oct | 217230504510 |
9 | 54571502874 |
10 | 19233147208 |
11 | 817a679190 |
12 | 3889185634 |
13 | 1a7685c3a2 |
14 | d06508612 |
15 | 77879043d |
hex | 47a628948 |
19233147208 has 32 divisors (see below), whose sum is σ = 39650319360. Its totient is φ = 8673497280.
The previous prime is 19233147203. The next prime is 19233147229. The reversal of 19233147208 is 80274133291.
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, 849291 + ... + 871642.
It is an arithmetic number, because the mean of its divisors is an integer number (1239072480).
Almost surely, 219233147208 is an apocalyptic number.
It is an amenable number.
19233147208 is an abundant number, since it is smaller than the sum of its proper divisors (20417172152).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
19233147208 is a wasteful number, since it uses less digits than its factorization.
19233147208 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1721077 (or 1721073 counting only the distinct ones).
The product of its (nonzero) digits is 72576, while the sum is 40.
The spelling of 19233147208 in words is "nineteen billion, two hundred thirty-three million, one hundred forty-seven thousand, two hundred eight".
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