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12173103461 = 44927111589
BaseRepresentation
bin10110101011001001…
…01101000101100101
31011102100211201122202
423111210231011211
5144412303302321
65331531504245
7610442446361
oct132544550545
934370751582
1012173103461
115187443892
1224388b8085
1311bcc925cc
148369dc2a1
154b3a6570b
hex2d592d165

12173103461 has 4 divisors (see below), whose sum is σ = 12200215500. Its totient is φ = 12145991424.

The previous prime is 12173103421. The next prime is 12173103463. The reversal of 12173103461 is 16430137121.

12173103461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16430137121 = 19864744059.

It can be written as a sum of positive squares in 2 ways, for example, as 2417590561 + 9755512900 = 49169^2 + 98770^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12173103461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12173103463) 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 3 ways as a sum of consecutive naturals, for example, 13555346 + ... + 13556243.

It is an arithmetic number, because the mean of its divisors is an integer number (3050053875).

Almost surely, 212173103461 is an apocalyptic number.

It is an amenable number.

12173103461 is a deficient number, since it is larger than the sum of its proper divisors (27112039).

12173103461 is an equidigital number, since it uses as much as digits as its factorization.

12173103461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27112038.

The product of its (nonzero) digits is 3024, while the sum is 29.

The spelling of 12173103461 in words is "twelve billion, one hundred seventy-three million, one hundred three thousand, four hundred sixty-one".

Divisors: 1 449 27111589 12173103461