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13911853 is a prime number
BaseRepresentation
bin110101000100…
…011100101101
3222011210110211
4311010130231
512030134403
61214102421
7226151224
oct65043455
928153424
1013911853
1179421aa
1247aaa11
132b61287
141bc1cbb
15134c06d
hexd4472d

13911853 has 2 divisors, whose sum is σ = 13911854. Its totient is φ = 13911852.

The previous prime is 13911847. The next prime is 13911907. The reversal of 13911853 is 35811931.

13911853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12369289 + 1542564 = 3517^2 + 1242^2 .

It is an emirp because it is prime and its reverse (35811931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13911853 - 221 = 11814701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13911353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6955926 + 6955927.

It is an arithmetic number, because the mean of its divisors is an integer number (6955927).

Almost surely, 213911853 is an apocalyptic number.

It is an amenable number.

13911853 is a deficient number, since it is larger than the sum of its proper divisors (1).

13911853 is an equidigital number, since it uses as much as digits as its factorization.

13911853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 31.

The square root of 13911853 is about 3729.8596488340. The cubic root of 13911853 is about 240.5073353543.

The spelling of 13911853 in words is "thirteen million, nine hundred eleven thousand, eight hundred fifty-three".