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13268109 = 317298971
BaseRepresentation
bin110010100111…
…010010001101
3220222002102110
4302213102031
511344034414
61152214233
7220530351
oct62472215
926862373
1013268109
117542588
12453a379
13299726a
141a95461
151271459
hexca748d

13268109 has 16 divisors (see below), whose sum is σ = 19379520. Its totient is φ = 8037120.

The previous prime is 13268083. The next prime is 13268113. The reversal of 13268109 is 90186231.

13268109 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13268109 - 27 = 13267981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13268119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3007 + ... + 5964.

It is an arithmetic number, because the mean of its divisors is an integer number (1211220).

Almost surely, 213268109 is an apocalyptic number.

It is an amenable number.

13268109 is a deficient number, since it is larger than the sum of its proper divisors (6111411).

13268109 is a wasteful number, since it uses less digits than its factorization.

13268109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9020.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 13268109 is about 3642.5415577588. The cubic root of 13268109 is about 236.7389280984.

The spelling of 13268109 in words is "thirteen million, two hundred sixty-eight thousand, one hundred nine".

Divisors: 1 3 17 29 51 87 493 1479 8971 26913 152507 260159 457521 780477 4422703 13268109