Base | Representation |
---|---|
bin | 110010011110… |
… | …111111011111 |
3 | 220220100211110 |
4 | 302132333133 |
5 | 11341443033 |
6 | 1151353103 |
7 | 220326336 |
oct | 62367737 |
9 | 26810743 |
10 | 13234143 |
11 | 751a00a |
12 | 4522793 |
13 | 2984970 |
14 | 1a86d1d |
15 | 1266363 |
hex | c9efdf |
13234143 has 16 divisors (see below), whose sum is σ = 20121696. Its totient is φ = 7664640.
The previous prime is 13234141. The next prime is 13234157. The reversal of 13234143 is 34143231.
13234143 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 13234143 - 21 = 13234141 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13234141) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9318 + ... + 10643.
It is an arithmetic number, because the mean of its divisors is an integer number (1257606).
Almost surely, 213234143 is an apocalyptic number.
13234143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.
13234143 is a deficient number, since it is larger than the sum of its proper divisors (6887553).
13234143 is a wasteful number, since it uses less digits than its factorization.
13234143 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19994.
The product of its digits is 864, while the sum is 21.
The square root of 13234143 is about 3637.8761661167. The cubic root of 13234143 is about 236.5367403852.
Adding to 13234143 its reverse (34143231), we get a palindrome (47377374).
The spelling of 13234143 in words is "thirteen million, two hundred thirty-four thousand, one hundred forty-three".
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