Base | Representation |
---|---|
bin | 1000100101001011101010… |
… | …10101111000000000000000 |
3 | 2110210221011000111120110000 |
4 | 10102211311111320000000 |
5 | 4433130232030000000 |
6 | 104044351552240000 |
7 | 3655203146363010 |
oct | 422456525700000 |
9 | 73727130446400 |
10 | 18869760000000 |
11 | 601569064a508 |
12 | 2149104540000 |
13 | a6b5454c2850 |
14 | 493430913c40 |
15 | 22aca46a0000 |
hex | 112975578000 |
18869760000000 has 2560 divisors, whose sum is σ = 86731254529920. Its totient is φ = 3981312000000.
The previous prime is 18869759999957. The next prime is 18869760000011. The reversal of 18869760000000 is 6796881.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (2560).
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1451519999994 + ... + 1451520000006.
Almost surely, 218869760000000 is an apocalyptic number.
18869760000000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 18869760000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43365627264960).
18869760000000 is an abundant number, since it is smaller than the sum of its proper divisors (67861494529920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18869760000000 is an frugal number, since it uses more digits than its factorization.
18869760000000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 97 (or 30 counting only the distinct ones).
The product of its (nonzero) digits is 145152, while the sum is 45.
Adding to 18869760000000 its reverse (6796881), we get a palindrome (18869766796881).
The spelling of 18869760000000 in words is "eighteen trillion, eight hundred sixty-nine billion, seven hundred sixty million", and thus it is an aban number.
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