Base | Representation |
---|---|
bin | 1000001100101110100010… |
… | …10010000001101110000010 |
3 | 2100211121021002012020122200 |
4 | 10012113101102001232002 |
5 | 4330343343124430330 |
6 | 102202344410414030 |
7 | 3540405354046005 |
oct | 406272122015602 |
9 | 70747232166580 |
10 | 18029488905090 |
11 | 58212995060a3 |
12 | 203229b431316 |
13 | a0a234276640 |
14 | 4648bbdb353c |
15 | 213ec5bc6a60 |
hex | 1065d1481b82 |
18029488905090 has 48 divisors (see below), whose sum is σ = 50482568937528. Its totient is φ = 4438028037888.
The previous prime is 18029488905089. The next prime is 18029488905139. The reversal of 18029488905090 is 9050988492081.
18029488905090 is a `hidden beast` number, since 1 + 8 + 0 + 2 + 9 + 48 + 89 + 0 + 509 + 0 = 666.
It can be written as a sum of positive squares in 4 ways, for example, as 15996392203401 + 2033096701689 = 3999549^2 + 1425867^2 .
It is a Curzon number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7704908619 + ... + 7704910958.
Almost surely, 218029488905090 is an apocalyptic number.
18029488905090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
18029488905090 is an abundant number, since it is smaller than the sum of its proper divisors (32453080032438).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18029488905090 is a wasteful number, since it uses less digits than its factorization.
18029488905090 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15409819603 (or 15409819600 counting only the distinct ones).
The product of its (nonzero) digits is 14929920, while the sum is 63.
The spelling of 18029488905090 in words is "eighteen trillion, twenty-nine billion, four hundred eighty-eight million, nine hundred five thousand, ninety".
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