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13839384 = 2331344357
BaseRepresentation
bin110100110010…
…110000011000
3222001010001210
4310302300120
512020330014
61212343120
7225430026
oct64626030
928033053
1013839384
1178a2809
124774aa0
132b372b0
141ba3716
151335859
hexd32c18

13839384 has 32 divisors (see below), whose sum is σ = 37260720. Its totient is φ = 4258176.

The previous prime is 13839383. The next prime is 13839407. The reversal of 13839384 is 48393831.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13839383) 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, 21867 + ... + 22490.

Almost surely, 213839384 is an apocalyptic number.

It is an amenable number.

13839384 is an abundant number, since it is smaller than the sum of its proper divisors (23421336).

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

13839384 is a wasteful number, since it uses less digits than its factorization.

13839384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44379 (or 44375 counting only the distinct ones).

The product of its digits is 62208, while the sum is 39.

The square root of 13839384 is about 3720.1322557135. The cubic root of 13839384 is about 240.0889947734.

The spelling of 13839384 in words is "thirteen million, eight hundred thirty-nine thousand, three hundred eighty-four".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 44357 88714 133071 177428 266142 354856 532284 576641 1064568 1153282 1729923 2306564 3459846 4613128 6919692 13839384