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13825291 is a prime number
BaseRepresentation
bin110100101111…
…010100001011
3222000101201211
4310233110023
512014402131
61212153551
7225340654
oct64572413
928011654
1013825291
117893167
1247688b7
132b30a5c
141b9c52b
1513315b1
hexd2f50b

13825291 has 2 divisors, whose sum is σ = 13825292. Its totient is φ = 13825290.

The previous prime is 13825289. The next prime is 13825303. The reversal of 13825291 is 19252831.

13825291 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13825291 - 21 = 13825289 is a prime.

It is a super-2 number, since 2×138252912 = 382277342469362, which contains 22 as substring.

Together with 13825289, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13825261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6912645 + 6912646.

It is an arithmetic number, because the mean of its divisors is an integer number (6912646).

Almost surely, 213825291 is an apocalyptic number.

13825291 is a deficient number, since it is larger than the sum of its proper divisors (1).

13825291 is an equidigital number, since it uses as much as digits as its factorization.

13825291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 31.

The square root of 13825291 is about 3718.2376201636. The cubic root of 13825291 is about 240.0074708323.

The spelling of 13825291 in words is "thirteen million, eight hundred twenty-five thousand, two hundred ninety-one".