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13830389 is a prime number
BaseRepresentation
bin110100110000…
…100011110101
3222000122201122
4310300203311
512020033024
61212233325
7225361556
oct64604365
928018648
1013830389
117896a81
12476b845
132b33181
141ba032d
151332d5e
hexd308f5

13830389 has 2 divisors, whose sum is σ = 13830390. Its totient is φ = 13830388.

The previous prime is 13830353. The next prime is 13830413. The reversal of 13830389 is 98303831.

13830389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11785489 + 2044900 = 3433^2 + 1430^2 .

It is a cyclic number.

It is not a de Polignac number, because 13830389 - 216 = 13764853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13830319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6915194 + 6915195.

It is an arithmetic number, because the mean of its divisors is an integer number (6915195).

Almost surely, 213830389 is an apocalyptic number.

It is an amenable number.

13830389 is a deficient number, since it is larger than the sum of its proper divisors (1).

13830389 is an equidigital number, since it uses as much as digits as its factorization.

13830389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 13830389 is about 3718.9230968118. The cubic root of 13830389 is about 240.0369676851.

The spelling of 13830389 in words is "thirteen million, eight hundred thirty thousand, three hundred eighty-nine".