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13110221215 = 5721316325253
BaseRepresentation
bin11000011010110111…
…00001100110011111
31020211200012020112201
430031123201212133
5203322204034330
610004525312331
7642612020200
oct141533414637
936750166481
1013110221215
115618418273
12265a7056a7
13130c183960
148c525b5a7
1551ae74eca
hex30d6e199f

13110221215 has 48 divisors (see below), whose sum is σ = 19830248928. Its totient is φ = 8247101184.

The previous prime is 13110221167. The next prime is 13110221221. The reversal of 13110221215 is 51212201131.

It is not a de Polignac number, because 13110221215 - 29 = 13110220703 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13110221192 and 13110221201.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 506529 + ... + 531781.

It is an arithmetic number, because the mean of its divisors is an integer number (413130186).

Almost surely, 213110221215 is an apocalyptic number.

13110221215 is a deficient number, since it is larger than the sum of its proper divisors (6720027713).

13110221215 is a wasteful number, since it uses less digits than its factorization.

13110221215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25448 (or 25441 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 19.

Adding to 13110221215 its reverse (51212201131), we get a palindrome (64322422346).

The spelling of 13110221215 in words is "thirteen billion, one hundred ten million, two hundred twenty-one thousand, two hundred fifteen".

Divisors: 1 5 7 13 35 49 65 91 163 245 455 637 815 1141 2119 3185 5705 7987 10595 14833 25253 39935 74165 103831 126265 176771 328289 519155 883855 1237397 1641445 2298023 4116239 6186985 11490115 16086161 20581195 28813673 53511107 80430805 144068365 201695711 267555535 374577749 1008478555 1872888745 2622044243 13110221215