| Base | Representation |
|---|---|
| bin | 1000001101101010111100… |
| … | …11100011110111010010000 |
| 3 | 2100221200222101210102010100 |
| 4 | 10012311132130132322100 |
| 5 | 4331411304013121444 |
| 6 | 102225311000332400 |
| 7 | 3542634156616341 |
| oct | 406653634367220 |
| 9 | 70850871712110 |
| 10 | 18061922004624 |
| 11 | 5834022109893 |
| 12 | 2038631174100 |
| 13 | a103027460b4 |
| 14 | 4662b76160c8 |
| 15 | 214c73213e69 |
| hex | 106d5e71ee90 |
18061922004624 has 405 divisors, whose sum is σ = 54568776331849. Its totient is φ = 5575910784000.
The previous prime is 18061922004593. The next prime is 18061922004631. The reversal of 18061922004624 is 42640022916081.
It is a happy number.
The square root of 18061922004624 is 4249932.
It is a perfect power (a square), and thus also a powerful number.
18061922004624 is a `hidden beast` number, since 1 + 8 + 0 + 6 + 19 + 2 + 2 + 0 + 0 + 4 + 624 = 666.
It can be written as a sum of positive squares in only one way, i.e., 14062050003600 + 3999872001024 = 3749940^2 + 1999968^2 .
It is a super-5 number, since 5×180619220046245 (a number of 67 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 18061922004624.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 71959848499 + ... + 71959848749.
Almost surely, 218061922004624 is an apocalyptic number.
18061922004624 is the 4249932-nd square number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 18061922004624
18061922004624 is an abundant number, since it is smaller than the sum of its proper divisors (36506854327225).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18061922004624 is an equidigital number, since it uses as much as digits as its factorization.
18061922004624 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 716 (or 356 counting only the distinct ones).
The product of its (nonzero) digits is 331776, while the sum is 45.
The spelling of 18061922004624 in words is "eighteen trillion, sixty-one billion, nine hundred twenty-two million, four thousand, six hundred twenty-four".
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