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13144201212 = 22310310634467
BaseRepresentation
bin11000011110111010…
…01001011111111100
31020221001010121100010
430033131021133330
5203404403414322
610012141503220
7643503603222
oct141735113774
936831117303
1013144201212
115635616a0a
122669b71b10
13131622036c
148c9984b12
1551de3820c
hex30f7497fc

13144201212 has 24 divisors (see below), whose sum is σ = 30967570816. Its totient is φ = 4338862128.

The previous prime is 13144201201. The next prime is 13144201237. The reversal of 13144201212 is 21210244131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5315998 + ... + 5318469.

Almost surely, 213144201212 is an apocalyptic number.

13144201212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13144201212 is an abundant number, since it is smaller than the sum of its proper divisors (17823369604).

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

13144201212 is a wasteful number, since it uses less digits than its factorization.

13144201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10634577 (or 10634575 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 13144201212 its reverse (21210244131), we get a palindrome (34354445343).

The spelling of 13144201212 in words is "thirteen billion, one hundred forty-four million, two hundred one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 103 206 309 412 618 1236 10634467 21268934 31903401 42537868 63806802 127613604 1095350101 2190700202 3286050303 4381400404 6572100606 13144201212