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13889032 = 239771777
BaseRepresentation
bin110100111110…
…111000001000
3222010122011121
4310332320020
512023422112
61213405024
7226024543
oct64767010
928118147
1013889032
117927043
124799774
132b53a81
141bb785a
151345407
hexd3ee08

13889032 has 16 divisors (see below), whose sum is σ = 26083260. Its totient is φ = 6933504.

The previous prime is 13889027. The next prime is 13889039. The reversal of 13889032 is 23098831.

13889032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12916836 + 972196 = 3594^2 + 986^2 .

It is not an unprimeable number, because it can be changed into a prime (13889039) 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, 6928 + ... + 8704.

Almost surely, 213889032 is an apocalyptic number.

It is an amenable number.

13889032 is a deficient number, since it is larger than the sum of its proper divisors (12194228).

13889032 is a wasteful number, since it uses less digits than its factorization.

13889032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2760 (or 2756 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 13889032 is about 3726.7991628206. The cubic root of 13889032 is about 240.3757539895.

The spelling of 13889032 in words is "thirteen million, eight hundred eighty-nine thousand, thirty-two".

Divisors: 1 2 4 8 977 1777 1954 3554 3908 7108 7816 14216 1736129 3472258 6944516 13889032