Base | Representation |
---|---|
bin | 10111110001010101… |
… | …10001011110101011 |
3 | 1012221101202112101020 |
4 | 23320222301132223 |
5 | 202114021200000 |
6 | 5510203423523 |
7 | 631152222300 |
oct | 137052613653 |
9 | 35841675336 |
10 | 12761896875 |
11 | 5459838012 |
12 | 2581b24ba3 |
13 | 1284c66390 |
14 | 890ca90a7 |
15 | 4ea5bcba0 |
hex | 2f8ab17ab |
12761896875 has 144 divisors (see below), whose sum is σ = 26656481376. Its totient is φ = 5382720000.
The previous prime is 12761896867. The next prime is 12761896913. The reversal of 12761896875 is 57869816721.
It is not a de Polignac number, because 12761896875 - 23 = 12761896867 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 5970807 + ... + 5972943.
It is an arithmetic number, because the mean of its divisors is an integer number (185114454).
Almost surely, 212761896875 is an apocalyptic number.
12761896875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
12761896875 is an abundant number, since it is smaller than the sum of its proper divisors (13894584501).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12761896875 is an equidigital number, since it uses as much as digits as its factorization.
12761896875 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2192 (or 2165 counting only the distinct ones).
The product of its digits is 10160640, while the sum is 60.
The spelling of 12761896875 in words is "twelve billion, seven hundred sixty-one million, eight hundred ninety-six thousand, eight hundred seventy-five".
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