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13268248138 = 267791910663
BaseRepresentation
bin11000101101101100…
…10110011001001010
31021020200112211201201
430112312112121022
5204133132420023
610032332334414
7646541151115
oct142666263112
937220484651
1013268248138
115699642232
1226a361440a
131335b33302
148dc23557c
15529c8cbad
hex316d9664a

13268248138 has 16 divisors (see below), whose sum is σ = 19955329920. Its totient is φ = 6616496016.

The previous prime is 13268248121. The next prime is 13268248139. The reversal of 13268248138 is 83184286231.

13268248138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13268248139) 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, 1238995 + ... + 1249657.

It is an arithmetic number, because the mean of its divisors is an integer number (1247208120).

Almost surely, 213268248138 is an apocalyptic number.

13268248138 is a deficient number, since it is larger than the sum of its proper divisors (6687081782).

13268248138 is a wasteful number, since it uses less digits than its factorization.

13268248138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12261.

The product of its digits is 442368, while the sum is 46.

The spelling of 13268248138 in words is "thirteen billion, two hundred sixty-eight million, two hundred forty-eight thousand, one hundred thirty-eight".

Divisors: 1 2 677 919 1354 1838 10663 21326 622163 1244326 7218851 9799297 14437702 19598594 6634124069 13268248138