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13202210321 = 43307028147
BaseRepresentation
bin11000100101110100…
…11011111000010001
31021002002021202212122
430102322123320101
5204014231212241
610022013104025
7645106636046
oct142272337021
937062252778
1013202210321
115665338023
122685488015
131325251091
148d35651cd
1552409604b
hex312e9be11

13202210321 has 4 divisors (see below), whose sum is σ = 13509238512. Its totient is φ = 12895182132.

The previous prime is 13202210303. The next prime is 13202210341. The reversal of 13202210321 is 12301220231.

13202210321 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12301220231 = 13499911269.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13202210321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13202210321.

It is not an unprimeable number, because it can be changed into a prime (13202210341) 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, 153514031 + ... + 153514116.

It is an arithmetic number, because the mean of its divisors is an integer number (3377309628).

Almost surely, 213202210321 is an apocalyptic number.

It is an amenable number.

13202210321 is a deficient number, since it is larger than the sum of its proper divisors (307028191).

13202210321 is an equidigital number, since it uses as much as digits as its factorization.

13202210321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307028190.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 13202210321 its reverse (12301220231), we get a palindrome (25503430552).

The spelling of 13202210321 in words is "thirteen billion, two hundred two million, two hundred ten thousand, three hundred twenty-one".

Divisors: 1 43 307028147 13202210321