Base | Representation |
---|---|
bin | 10001111111000111… |
… | …001110000010011010 |
3 | 1211211220211000211010 |
4 | 101333013032002122 |
5 | 304022442434442 |
6 | 12512205114350 |
7 | 1252403161533 |
oct | 217707160232 |
9 | 54756730733 |
10 | 19312468122 |
11 | 8210426162 |
12 | 38ab8589b6 |
13 | 1a8a11263c |
14 | d12c7568a |
15 | 78070cb9c |
hex | 47f1ce09a |
19312468122 has 16 divisors (see below), whose sum is σ = 38633605920. Its totient is φ = 6436044432.
The previous prime is 19312468079. The next prime is 19312468127. The reversal of 19312468122 is 22186421391.
It is not an unprimeable number, because it can be changed into a prime (19312468127) 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, 332097 + ... + 385892.
It is an arithmetic number, because the mean of its divisors is an integer number (2414600370).
Almost surely, 219312468122 is an apocalyptic number.
19312468122 is an abundant number, since it is smaller than the sum of its proper divisors (19321137798).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
19312468122 is a wasteful number, since it uses less digits than its factorization.
19312468122 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 722477.
The product of its digits is 41472, while the sum is 39.
The spelling of 19312468122 in words is "nineteen billion, three hundred twelve million, four hundred sixty-eight thousand, one hundred twenty-two".
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