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12601530642 = 233378217591
BaseRepresentation
bin10111011110001110…
…00001100100010010
31012112020000002021010
423233013001210102
5201301442440032
65442234311350
7624164146251
oct135707014422
935466002233
1012601530642
115387265538
122538288556
13125a97800c
14877882798
154db491ccc
hex2ef1c1912

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".

Divisors: 1 2 3 6 337 674 821 1011 1642 2022 2463 4926 7591 15182 22773 45546 276677 553354 830031 1660062 2558167 5116334 6232211 7674501 12464422 15349002 18696633 37393266 2100255107 4200510214 6300765321 12601530642