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13103247215 = 52620649443
BaseRepresentation
bin11000011010000001…
…11010111101101111
31020211012001221000102
430031000322331233
5203313412402330
610004120021315
7642465522632
oct141500727557
936735057012
1013103247215
115614494633
12265830183b
13130a8b1526
148c4363c19
1551a548945
hex30d03af6f

13103247215 has 4 divisors (see below), whose sum is σ = 15723896664. Its totient is φ = 10482597768.

The previous prime is 13103247181. The next prime is 13103247217. The reversal of 13103247215 is 51274230131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13103247215 - 214 = 13103230831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13103247217) by changing a digit.

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, 1310324717 + ... + 1310324726.

It is an arithmetic number, because the mean of its divisors is an integer number (3930974166).

Almost surely, 213103247215 is an apocalyptic number.

13103247215 is a deficient number, since it is larger than the sum of its proper divisors (2620649449).

13103247215 is an equidigital number, since it uses as much as digits as its factorization.

13103247215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2620649448.

The product of its (nonzero) digits is 5040, while the sum is 29.

Adding to 13103247215 its reverse (51274230131), we get a palindrome (64377477346).

The spelling of 13103247215 in words is "thirteen billion, one hundred three million, two hundred forty-seven thousand, two hundred fifteen".

Divisors: 1 5 2620649443 13103247215