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13122120109 = 74048746301
BaseRepresentation
bin11000011100010001…
…11010100110101101
31020212111120202202111
430032020322212231
5203333230320414
610010032324021
7643115115640
oct141610724655
936774522674
1013122120109
11562410506a
1226626a3611
13131178b917
148c6a77a57
1551c0258c4
hex30e23a9ad

13122120109 has 8 divisors (see below), whose sum is σ = 14997403008. Its totient is φ = 11247010800.

The previous prime is 13122120101. The next prime is 13122120181. The reversal of 13122120109 is 90102122131.

13122120109 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 13122120109 - 23 = 13122120101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13122120109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122120101) 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, 260259 + ... + 306559.

It is an arithmetic number, because the mean of its divisors is an integer number (1874675376).

Almost surely, 213122120109 is an apocalyptic number.

It is an amenable number.

13122120109 is a deficient number, since it is larger than the sum of its proper divisors (1875282899).

13122120109 is an equidigital number, since it uses as much as digits as its factorization.

13122120109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86795.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 13122120109 in words is "thirteen billion, one hundred twenty-two million, one hundred twenty thousand, one hundred nine".

Divisors: 1 7 40487 46301 283409 324107 1874588587 13122120109