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13885842 = 2310322469
BaseRepresentation
bin110100111110…
…000110010010
3222010110210110
4310332012102
512023321332
61213342150
7226012335
oct64760622
928113713
1013885842
117924703
124797956
132b52499
141bb661c
1513444cc
hexd3e192

13885842 has 16 divisors (see below), whose sum is σ = 28042560. Its totient is φ = 4583472.

The previous prime is 13885829. The next prime is 13885849. The reversal of 13885842 is 24858831.

13885842 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 13885842.

It is not an unprimeable number, because it can be changed into a prime (13885849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10617 + ... + 11852.

It is an arithmetic number, because the mean of its divisors is an integer number (1752660).

Almost surely, 213885842 is an apocalyptic number.

13885842 is an abundant number, since it is smaller than the sum of its proper divisors (14156718).

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

13885842 is a wasteful number, since it uses less digits than its factorization.

13885842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22577.

The product of its digits is 61440, while the sum is 39.

The square root of 13885842 is about 3726.3711570374. The cubic root of 13885842 is about 240.3573496023.

The spelling of 13885842 in words is "thirteen million, eight hundred eighty-five thousand, eight hundred forty-two".

Divisors: 1 2 3 6 103 206 309 618 22469 44938 67407 134814 2314307 4628614 6942921 13885842