Base | Representation |
---|---|
bin | 10111010111001001… |
… | …00110011101110101 |
3 | 1012101002022111202110 |
4 | 23223210212131311 |
5 | 201141244100333 |
6 | 5432314201233 |
7 | 622543505100 |
oct | 135344463565 |
9 | 35332274673 |
10 | 12542175093 |
11 | 5356804868 |
12 | 2520423219 |
13 | 124b5954a6 |
14 | 86da31737 |
15 | 4d616a063 |
hex | 2eb926775 |
12542175093 has 24 divisors (see below), whose sum is σ = 19479521088. Its totient is φ = 7157248896.
The previous prime is 12542175049. The next prime is 12542175109. The reversal of 12542175093 is 39057124521.
It is not a de Polignac number, because 12542175093 - 220 = 12541126517 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12542175013) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51805 + ... + 166637.
It is an arithmetic number, because the mean of its divisors is an integer number (811646712).
Almost surely, 212542175093 is an apocalyptic number.
It is an amenable number.
12542175093 is a deficient number, since it is larger than the sum of its proper divisors (6937345995).
12542175093 is a wasteful number, since it uses less digits than its factorization.
12542175093 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 115593 (or 115586 counting only the distinct ones).
The product of its (nonzero) digits is 75600, while the sum is 39.
The spelling of 12542175093 in words is "twelve billion, five hundred forty-two million, one hundred seventy-five thousand, ninety-three".
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