Base | Representation |
---|---|
bin | 110100111110… |
… | …101010100011 |
3 | 222010120222102 |
4 | 310332222203 |
5 | 12023410123 |
6 | 1213401015 |
7 | 226022162 |
oct | 64765243 |
9 | 28116872 |
10 | 13888163 |
11 | 7926423 |
12 | 479916b |
13 | 2b53563 |
14 | 1bb73d9 |
15 | 1345028 |
hex | d3eaa3 |
13888163 has 4 divisors (see below), whose sum is σ = 13949040. Its totient is φ = 13827288.
The previous prime is 13888153. The next prime is 13888181. The reversal of 13888163 is 36188831.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36188831 = 7 ⋅5169833.
It is a cyclic number.
It is not a de Polignac number, because 13888163 - 212 = 13884067 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13888153) 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, 30095 + ... + 30552.
It is an arithmetic number, because the mean of its divisors is an integer number (3487260).
Almost surely, 213888163 is an apocalyptic number.
13888163 is a deficient number, since it is larger than the sum of its proper divisors (60877).
13888163 is an equidigital number, since it uses as much as digits as its factorization.
13888163 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 60876.
The product of its digits is 27648, while the sum is 38.
The square root of 13888163 is about 3726.6825730132. The cubic root of 13888163 is about 240.3707406599.
The spelling of 13888163 in words is "thirteen million, eight hundred eighty-eight thousand, one hundred sixty-three".
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