Base | Representation |
---|---|
bin | 110100100110… |
… | …011111101001 |
3 | 221221120011200 |
4 | 310212133221 |
5 | 12012223121 |
6 | 1211314413 |
7 | 225130431 |
oct | 64463751 |
9 | 27846150 |
10 | 13789161 |
11 | 7869001 |
12 | 474ba09 |
13 | 2b1a489 |
14 | 1b8d2c1 |
15 | 1325a26 |
hex | d267e9 |
13789161 has 12 divisors (see below), whose sum is σ = 20404020. Its totient is φ = 8968320.
The previous prime is 13789151. The next prime is 13789163. The reversal of 13789161 is 16198731.
It can be written as a sum of positive squares in 2 ways, for example, as 5198400 + 8590761 = 2280^2 + 2931^2 .
It is not a de Polignac number, because 13789161 - 27 = 13789033 is a prime.
It is a super-2 number, since 2×137891612 = 380281922167842, which contains 22 as substring.
It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13789163) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18316 + ... + 19053.
It is an arithmetic number, because the mean of its divisors is an integer number (1700335).
Almost surely, 213789161 is an apocalyptic number.
It is an amenable number.
13789161 is a deficient number, since it is larger than the sum of its proper divisors (6614859).
13789161 is a wasteful number, since it uses less digits than its factorization.
13789161 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 37416 (or 37413 counting only the distinct ones).
The product of its digits is 9072, while the sum is 36.
The square root of 13789161 is about 3713.3759572658. The cubic root of 13789161 is about 239.7982158106.
It can be divided in two parts, 137 and 89161, that added together give a palindrome (89298).
The spelling of 13789161 in words is "thirteen million, seven hundred eighty-nine thousand, one hundred sixty-one".
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