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12731225601 = 36536498839
BaseRepresentation
bin10111101101101011…
…10001011000000001
31012212021001021022010
423312311301120001
5202033143204401
65503150203133
7630330426543
oct136665613001
935767037263
1012731225601
115443499256
1225737b34a9
13127b7b79b3
1488aba3693
154e7a5eed6
hex2f6d71601

12731225601 has 8 divisors (see below), whose sum is σ = 17000965440. Its totient is φ = 8474484752.

The previous prime is 12731225597. The next prime is 12731225609. The reversal of 12731225601 is 10652213721.

12731225601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12731225601 - 22 = 12731225597 is a prime.

It is a super-2 number, since 2×127312256012 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12731225609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3247461 + ... + 3251378.

It is an arithmetic number, because the mean of its divisors is an integer number (2125120680).

Almost surely, 212731225601 is an apocalyptic number.

It is an amenable number.

12731225601 is a deficient number, since it is larger than the sum of its proper divisors (4269739839).

12731225601 is an equidigital number, since it uses as much as digits as its factorization.

12731225601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6499495.

The product of its (nonzero) digits is 5040, while the sum is 30.

The spelling of 12731225601 in words is "twelve billion, seven hundred thirty-one million, two hundred twenty-five thousand, six hundred one".

Divisors: 1 3 653 1959 6498839 19496517 4243741867 12731225601