Base | Representation |
---|---|
bin | 10001000001111001… |
… | …011110100010000100 |
3 | 1202012100022101100022 |
4 | 101001321132202010 |
5 | 244422034033432 |
6 | 12222240434312 |
7 | 1215062543603 |
oct | 210171364204 |
9 | 52170271308 |
10 | 18285455492 |
11 | 7833732397 |
12 | 3663918998 |
13 | 1955408165 |
14 | c566d5a3a |
15 | 720492b12 |
hex | 441e5e884 |
18285455492 has 24 divisors (see below), whose sum is σ = 34542244800. Its totient is φ = 8443657376.
The previous prime is 18285455491. The next prime is 18285455497. The reversal of 18285455492 is 29455458281.
It is not an unprimeable number, because it can be changed into a prime (18285455491) 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, 3424142 + ... + 3429477.
It is an arithmetic number, because the mean of its divisors is an integer number (1439260200).
Almost surely, 218285455492 is an apocalyptic number.
It is an amenable number.
18285455492 is a deficient number, since it is larger than the sum of its proper divisors (16256789308).
18285455492 is a wasteful number, since it uses less digits than its factorization.
18285455492 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6853675 (or 6853673 counting only the distinct ones).
The product of its digits is 4608000, while the sum is 53.
The spelling of 18285455492 in words is "eighteen billion, two hundred eighty-five million, four hundred fifty-five thousand, four hundred ninety-two".
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