Base | Representation |
---|---|
bin | 11000101111101101… |
… | …01111010101011110 |
3 | 1021021212022101212221 |
4 | 30113312233111132 |
5 | 204201443040033 |
6 | 10034134215554 |
7 | 650134502125 |
oct | 142766572536 |
9 | 37255271787 |
10 | 13285127518 |
11 | 56a8120a33 |
12 | 26a91b45ba |
13 | 1339493200 |
14 | 90058aabc |
15 | 52b4c412d |
hex | 317daf55e |
13285127518 has 12 divisors (see below), whose sum is σ = 21578506488. Its totient is φ = 6131597160.
The previous prime is 13285127483. The next prime is 13285127519. The reversal of 13285127518 is 81572158231.
It is a super-2 number, since 2×132851275182 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13285127519) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19652218 + ... + 19652893.
It is an arithmetic number, because the mean of its divisors is an integer number (1798208874).
Almost surely, 213285127518 is an apocalyptic number.
13285127518 is a deficient number, since it is larger than the sum of its proper divisors (8293378970).
13285127518 is a wasteful number, since it uses less digits than its factorization.
13285127518 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 39305139 (or 39305126 counting only the distinct ones).
The product of its digits is 134400, while the sum is 43.
The spelling of 13285127518 in words is "thirteen billion, two hundred eighty-five million, one hundred twenty-seven thousand, five hundred eighteen".
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