Base | Representation |
---|---|
bin | 10111110110111001… |
… | …01100101000000011 |
3 | 1020001122112011211112 |
4 | 23323130230220003 |
5 | 202212441214002 |
6 | 5514551233535 |
7 | 632256532133 |
oct | 137334545003 |
9 | 36048464745 |
10 | 12808538627 |
11 | 54830a4715 |
12 | 25956788ab |
13 | 1291817051 |
14 | 89716aac3 |
15 | 4ee732852 |
hex | 2fb72ca03 |
12808538627 has 4 divisors (see below), whose sum is σ = 12810585456. Its totient is φ = 12806491800.
The previous prime is 12808538591. The next prime is 12808538629. The reversal of 12808538627 is 72683580821.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 12808538627 - 210 = 12808537603 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12808538629) 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, 1013999 + ... + 1026552.
It is an arithmetic number, because the mean of its divisors is an integer number (3202646364).
Almost surely, 212808538627 is an apocalyptic number.
12808538627 is a deficient number, since it is larger than the sum of its proper divisors (2046829).
12808538627 is an equidigital number, since it uses as much as digits as its factorization.
12808538627 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2046828.
The product of its (nonzero) digits is 1290240, while the sum is 50.
The spelling of 12808538627 in words is "twelve billion, eight hundred eight million, five hundred thirty-eight thousand, six hundred twenty-seven".
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