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13807669 is a prime number
BaseRepresentation
bin110100101011…
…000000110101
3221222111120011
4310223000311
512013321134
61211540221
7225235411
oct64530065
927874504
1013807669
1178809a7
12475a671
132b25a25
141b95d41
15132b264
hexd2b035

13807669 has 2 divisors, whose sum is σ = 13807670. Its totient is φ = 13807668.

The previous prime is 13807667. The next prime is 13807691. The reversal of 13807669 is 96670831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12215025 + 1592644 = 3495^2 + 1262^2 .

It is a cyclic number.

It is not a de Polignac number, because 13807669 - 21 = 13807667 is a prime.

It is a super-2 number, since 2×138076692 = 381303446427122, which contains 22 as substring.

Together with 13807667, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13807667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6903834 + 6903835.

It is an arithmetic number, because the mean of its divisors is an integer number (6903835).

Almost surely, 213807669 is an apocalyptic number.

It is an amenable number.

13807669 is a deficient number, since it is larger than the sum of its proper divisors (1).

13807669 is an equidigital number, since it uses as much as digits as its factorization.

13807669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 13807669 is about 3715.8671935364. The cubic root of 13807669 is about 239.9054546579.

The spelling of 13807669 in words is "thirteen million, eight hundred seven thousand, six hundred sixty-nine".