Base | Representation |
---|---|
bin | 10000110010001100… |
… | …110001000001001000 |
3 | 1201111222201100021101 |
4 | 100302030301001020 |
5 | 243402122421423 |
6 | 12140151351144 |
7 | 1205414060023 |
oct | 206214610110 |
9 | 51458640241 |
10 | 18022076488 |
11 | 7708aa0899 |
12 | 35ab6824b4 |
13 | 191298cbb0 |
14 | c2d7361ba |
15 | 7072b97ad |
hex | 432331048 |
18022076488 has 32 divisors (see below), whose sum is σ = 36425188800. Its totient is φ = 8310005568.
The previous prime is 18022076483. The next prime is 18022076509. The reversal of 18022076488 is 88467022081.
It is a happy number.
It is not an unprimeable number, because it can be changed into a prime (18022076483) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29043 + ... + 192061.
It is an arithmetic number, because the mean of its divisors is an integer number (1138287150).
Almost surely, 218022076488 is an apocalyptic number.
It is an amenable number.
18022076488 is an abundant number, since it is smaller than the sum of its proper divisors (18403112312).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18022076488 is a wasteful number, since it uses less digits than its factorization.
18022076488 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 164101 (or 164097 counting only the distinct ones).
The product of its (nonzero) digits is 344064, while the sum is 46.
The spelling of 18022076488 in words is "eighteen billion, twenty-two million, seventy-six thousand, four hundred eighty-eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •