Base | Representation |
---|---|
bin | 11000100110011000… |
… | …10010000110100111 |
3 | 1021002102002110122021 |
4 | 30103030102012213 |
5 | 204021430420441 |
6 | 10022301244011 |
7 | 645164463121 |
oct | 142314220647 |
9 | 37072073567 |
10 | 13206888871 |
11 | 5667a430a0 |
12 | 2686b63607 |
13 | 13261cb757 |
14 | 8d4022211 |
15 | 5246bc3d1 |
hex | 3133121a7 |
13206888871 has 12 divisors (see below), whose sum is σ = 14512145544. Its totient is φ = 11919694800.
The previous prime is 13206888839. The next prime is 13206888883. The reversal of 13206888871 is 17888860231.
It is a happy number.
It is not a de Polignac number, because 13206888871 - 25 = 13206888839 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13206883871) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 181461 + ... + 243601.
It is an arithmetic number, because the mean of its divisors is an integer number (1209345462).
Almost surely, 213206888871 is an apocalyptic number.
13206888871 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
13206888871 is a deficient number, since it is larger than the sum of its proper divisors (1305256673).
13206888871 is an equidigital number, since it uses as much as digits as its factorization.
13206888871 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 62430 (or 62291 counting only the distinct ones).
The product of its (nonzero) digits is 1032192, while the sum is 52.
The spelling of 13206888871 in words is "thirteen billion, two hundred six million, eight hundred eighty-eight thousand, eight hundred seventy-one".
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