Base | Representation |
---|---|
bin | 10111011110001110… |
… | …00001100100010010 |
3 | 1012112020000002021010 |
4 | 23233013001210102 |
5 | 201301442440032 |
6 | 5442234311350 |
7 | 624164146251 |
oct | 135707014422 |
9 | 35466002233 |
10 | 12601530642 |
11 | 5387265538 |
12 | 2538288556 |
13 | 125a97800c |
14 | 877882798 |
15 | 4db491ccc |
hex | 2ef1c1912 |
12601530642 has 32 divisors (see below), whose sum is σ = 25311970944. Its totient is φ = 4182393600.
The previous prime is 12601530581. The next prime is 12601530647. The reversal of 12601530642 is 24603510621.
It is not an unprimeable number, because it can be changed into a prime (12601530647) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1656267 + ... + 1663857.
It is an arithmetic number, because the mean of its divisors is an integer number (790999092).
Almost surely, 212601530642 is an apocalyptic number.
12601530642 is an abundant number, since it is smaller than the sum of its proper divisors (12710440302).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12601530642 is a wasteful number, since it uses less digits than its factorization.
12601530642 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8754.
The product of its (nonzero) digits is 8640, while the sum is 30.
The spelling of 12601530642 in words is "twelve billion, six hundred one million, five hundred thirty thousand, six hundred forty-two".
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