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13784022 = 2327109397
BaseRepresentation
bin110100100101…
…001111010110
3221221022010100
4310211033112
512012042042
61211234530
7225106440
oct64451726
927838110
1013784022
11786515a
124748a46
132b18035
141b8b490
15132424c
hexd253d6

13784022 has 24 divisors (see below), whose sum is σ = 34132176. Its totient is φ = 3938256.

The previous prime is 13784009. The next prime is 13784039. The reversal of 13784022 is 22048731.

It is a super-4 number, since 4×137840224 (a number of 30 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 54573 + ... + 54824.

It is an arithmetic number, because the mean of its divisors is an integer number (1422174).

Almost surely, 213784022 is an apocalyptic number.

13784022 is an abundant number, since it is smaller than the sum of its proper divisors (20348154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13784022 is a wasteful number, since it uses less digits than its factorization.

13784022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109412 (or 109409 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 13784022 is about 3712.6839348374. The cubic root of 13784022 is about 239.7684224545.

The spelling of 13784022 in words is "thirteen million, seven hundred eighty-four thousand, twenty-two".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 109397 218794 328191 656382 765779 984573 1531558 1969146 2297337 4594674 6892011 13784022