Base | Representation |
---|---|
bin | 10110101001010011… |
… | …01010010000101010 |
3 | 1011101021201100201201 |
4 | 23110221222100222 |
5 | 144344323003021 |
6 | 5330220034414 |
7 | 610164052654 |
oct | 132451522052 |
9 | 34337640651 |
10 | 12157625386 |
11 | 5179731995 |
12 | 2433692a0a |
13 | 11b9a0349a |
14 | 83492d6d4 |
15 | 4b2509591 |
hex | 2d4a6a42a |
12157625386 has 8 divisors (see below), whose sum is σ = 18298679364. Its totient is φ = 6058065600.
The previous prime is 12157625371. The next prime is 12157625387. The reversal of 12157625386 is 68352675121.
It can be written as a sum of positive squares in 2 ways, for example, as 11855943225 + 301682161 = 108885^2 + 17369^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not an unprimeable number, because it can be changed into a prime (12157625387) 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, 10372815 + ... + 10373986.
Almost surely, 212157625386 is an apocalyptic number.
12157625386 is a deficient number, since it is larger than the sum of its proper divisors (6141053978).
12157625386 is a wasteful number, since it uses less digits than its factorization.
12157625386 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 20747096.
The product of its digits is 604800, while the sum is 46.
The spelling of 12157625386 in words is "twelve billion, one hundred fifty-seven million, six hundred twenty-five thousand, three hundred eighty-six".
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