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13989183 = 313358697
BaseRepresentation
bin110101010111…
…010100111111
3222022201112220
4311113110333
512040123213
61215500423
7226622535
oct65272477
928281486
1013989183
11799530a
124827713
132b8a530
141c02155
151364e23
hexd5753f

13989183 has 8 divisors (see below), whose sum is σ = 20087088. Its totient is φ = 8608704.

The previous prime is 13989179. The next prime is 13989193. The reversal of 13989183 is 38198931.

It is a happy number.

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

It is not a de Polignac number, because 13989183 - 22 = 13989179 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13989133) 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, 179310 + ... + 179387.

It is an arithmetic number, because the mean of its divisors is an integer number (2510886).

Almost surely, 213989183 is an apocalyptic number.

13989183 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13989183 is a deficient number, since it is larger than the sum of its proper divisors (6097905).

13989183 is a wasteful number, since it uses less digits than its factorization.

13989183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358713.

The product of its digits is 46656, while the sum is 42.

The square root of 13989183 is about 3740.2116250287. The cubic root of 13989183 is about 240.9521377838.

The spelling of 13989183 in words is "thirteen million, nine hundred eighty-nine thousand, one hundred eighty-three".

Divisors: 1 3 13 39 358697 1076091 4663061 13989183