Base | Representation |
---|---|
bin | 1011111111100111101001… |
… | …1100011101111000010000 |
3 | 1201200201111210022010222110 |
4 | 2333321322130131320100 |
5 | 3212031203043201423 |
6 | 44014145050505320 |
7 | 2530526055314241 |
oct | 277717234357020 |
9 | 51621453263873 |
10 | 13187603881488 |
11 | 4224916655653 |
12 | 158ba19a35240 |
13 | 74877ca6010a |
14 | 3383d7a54cc8 |
15 | 17d08e6e2193 |
hex | bfe7a71de10 |
13187603881488 has 20 divisors (see below), whose sum is σ = 34067976693968. Its totient is φ = 4395867960480.
The previous prime is 13187603881399. The next prime is 13187603881489. The reversal of 13187603881488 is 88418830678131.
It is a super-3 number, since 3×131876038814883 (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is not an unprimeable number, because it can be changed into a prime (13187603881489) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137370873718 + ... + 137370873813.
Almost surely, 213187603881488 is an apocalyptic number.
It is an amenable number.
13187603881488 is an abundant number, since it is smaller than the sum of its proper divisors (20880372812480).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13187603881488 is a wasteful number, since it uses less digits than its factorization.
13187603881488 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 274741747542 (or 274741747536 counting only the distinct ones).
The product of its (nonzero) digits is 49545216, while the sum is 66.
The spelling of 13187603881488 in words is "thirteen trillion, one hundred eighty-seven billion, six hundred three million, eight hundred eighty-one thousand, four hundred eighty-eight".
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