Base | Representation |
---|---|
bin | 10111010011000001… |
… | …10111010011110011 |
3 | 1012021200022222222202 |
4 | 23221200313103303 |
5 | 201103424003300 |
6 | 5425042053415 |
7 | 621644123606 |
oct | 135140672363 |
9 | 35250288882 |
10 | 12507641075 |
11 | 5339267956 |
12 | 251094a26b |
13 | 1244393867 |
14 | 86920233d |
15 | 4d30e7ad5 |
hex | 2e98374f3 |
12507641075 has 6 divisors (see below), whose sum is σ = 15509474964. Its totient is φ = 10006112840.
The previous prime is 12507641059. The next prime is 12507641129. The reversal of 12507641075 is 57014670521.
It is not a de Polignac number, because 12507641075 - 24 = 12507641059 is a prime.
It is a super-2 number, since 2×125076410752 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 250152797 + ... + 250152846.
It is an arithmetic number, because the mean of its divisors is an integer number (2584912494).
Almost surely, 212507641075 is an apocalyptic number.
12507641075 is a deficient number, since it is larger than the sum of its proper divisors (3001833889).
12507641075 is an equidigital number, since it uses as much as digits as its factorization.
12507641075 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 500305653 (or 500305648 counting only the distinct ones).
The product of its (nonzero) digits is 58800, while the sum is 38.
The spelling of 12507641075 in words is "twelve billion, five hundred seven million, six hundred forty-one thousand, seventy-five".
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