Base | Representation |
---|---|
bin | 11011001100010111010… |
… | …011110010110101001100 |
3 | 20121122110001012011202221 |
4 | 123030113103302311030 |
5 | 221104100132314133 |
6 | 3550245245425124 |
7 | 252003113355550 |
oct | 33142723626514 |
9 | 6548401164687 |
10 | 1868701838668 |
11 | 66056a51a955 |
12 | 26220056b1a4 |
13 | 1072aa749752 |
14 | 66634c21860 |
15 | 339211dda2d |
hex | 1b3174f2d4c |
1868701838668 has 12 divisors (see below), whose sum is σ = 3737403677392. Its totient is φ = 800872216560.
The previous prime is 1868701838657. The next prime is 1868701838681. The reversal of 1868701838668 is 8668381078681.
1868701838668 is an admirable number.
It is a junction number, because it is equal to n+sod(n) for n = 1868701838597 and 1868701838606.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33369675663 + ... + 33369675718.
Almost surely, 21868701838668 is an apocalyptic number.
It is an amenable number.
1868701838668 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1868701838668 is a wasteful number, since it uses less digits than its factorization.
1868701838668 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 66739351392 (or 66739351390 counting only the distinct ones).
The product of its (nonzero) digits is 148635648, while the sum is 70.
The spelling of 1868701838668 in words is "one trillion, eight hundred sixty-eight billion, seven hundred one million, eight hundred thirty-eight thousand, six hundred sixty-eight".
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