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13220201320 = 2353163104491
BaseRepresentation
bin11000100111111110…
…00100001101101000
31021010100010210212221
430103333010031220
5204033332420240
610023454443424
7645415566664
oct142377041550
937110123787
1013220201320
115674505a17
12268b503574
131328bacc41
148d5ac98a4
1552594ba4a
hex313fc4368

13220201320 has 32 divisors (see below), whose sum is σ = 29755141920. Its totient is φ = 5286358080.

The previous prime is 13220201237. The next prime is 13220201329. The reversal of 13220201320 is 2310202231.

13220201320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 13220201294 and 13220201303.

It is not an unprimeable number, because it can be changed into a prime (13220201329) 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, 74275 + ... + 178765.

It is an arithmetic number, because the mean of its divisors is an integer number (929848185).

Almost surely, 213220201320 is an apocalyptic number.

13220201320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13220201320 is an abundant number, since it is smaller than the sum of its proper divisors (16534940600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13220201320 is a wasteful number, since it uses less digits than its factorization.

13220201320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107665 (or 107661 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 13220201320 its reverse (2310202231), we get a palindrome (15530403551).

The spelling of 13220201320 in words is "thirteen billion, two hundred twenty million, two hundred one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 3163 6326 12652 15815 25304 31630 63260 104491 126520 208982 417964 522455 835928 1044910 2089820 4179640 330505033 661010066 1322020132 1652525165 2644040264 3305050330 6610100660 13220201320