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13789838 = 28977471
BaseRepresentation
bin110100100110…
…101010001110
3221221121002202
4310212222032
512012233323
61211321502
7225132416
oct64465216
927847082
1013789838
117869567
124750292
132b1a88a
141b8d646
151325d28
hexd26a8e

13789838 has 8 divisors (see below), whose sum is σ = 20917440. Its totient is φ = 6817360.

The previous prime is 13789837. The next prime is 13789859. The reversal of 13789838 is 83898731.

13789838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 13789792 and 13789801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13789837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38558 + ... + 38913.

It is an arithmetic number, because the mean of its divisors is an integer number (2614680).

Almost surely, 213789838 is an apocalyptic number.

13789838 is a deficient number, since it is larger than the sum of its proper divisors (7127602).

13789838 is an equidigital number, since it uses as much as digits as its factorization.

13789838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77562.

The product of its digits is 290304, while the sum is 47.

The square root of 13789838 is about 3713.4671130899. The cubic root of 13789838 is about 239.8021401668.

The spelling of 13789838 in words is "thirteen million, seven hundred eighty-nine thousand, eight hundred thirty-eight".

Divisors: 1 2 89 178 77471 154942 6894919 13789838