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13220130212 = 2219317124521
BaseRepresentation
bin11000100111111101…
…10010110110100100
31021010100000012100022
430103332302312210
5204033323131322
610023453134312
7645415152452
oct142376626644
937110005308
1013220130212
115674467553
12268b48a398
131328b86773
148d5aab9d2
15525935942
hex313fb2da4

13220130212 has 12 divisors (see below), whose sum is σ = 23255100876. Its totient is φ = 6575815680.

The previous prime is 13220130179. The next prime is 13220130247. The reversal of 13220130212 is 21203102231.

It can be written as a sum of positive squares in 2 ways, for example, as 3282831616 + 9937298596 = 57296^2 + 99686^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8561489 + ... + 8563032.

It is an arithmetic number, because the mean of its divisors is an integer number (1937925073).

Almost surely, 213220130212 is an apocalyptic number.

It is an amenable number.

13220130212 is a deficient number, since it is larger than the sum of its proper divisors (10034970664).

13220130212 is a wasteful number, since it uses less digits than its factorization.

13220130212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17124718 (or 17124716 counting only the distinct ones).

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

Adding to 13220130212 its reverse (21203102231), we get a palindrome (34423232443).

The spelling of 13220130212 in words is "thirteen billion, two hundred twenty million, one hundred thirty thousand, two hundred twelve".

Divisors: 1 2 4 193 386 772 17124521 34249042 68498084 3305032553 6610065106 13220130212