Base | Representation |
---|---|
bin | 110001111010… |
… | …111101001101 |
3 | 220121212100201 |
4 | 301322331031 |
5 | 11322232131 |
6 | 1144253501 |
7 | 216143116 |
oct | 61727515 |
9 | 26555321 |
10 | 13086541 |
11 | 7429126 |
12 | 4471291 |
13 | 2932720 |
14 | 1a4920d |
15 | 1237761 |
hex | c7af4d |
13086541 has 8 divisors (see below), whose sum is σ = 14155064. Its totient is φ = 12026880.
The previous prime is 13086533. The next prime is 13086553. The reversal of 13086541 is 14568031.
It can be written as a sum of positive squares in 4 ways, for example, as 3960100 + 9126441 = 1990^2 + 3021^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a 5-Lehmer number, since φ(13086541) divides (13086541-1)5.
It is a cyclic number.
It is not a de Polignac number, because 13086541 - 23 = 13086533 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13086571) 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, 1045 + ... + 5221.
It is an arithmetic number, because the mean of its divisors is an integer number (1769383).
Almost surely, 213086541 is an apocalyptic number.
It is an amenable number.
13086541 is a deficient number, since it is larger than the sum of its proper divisors (1068523).
13086541 is a wasteful number, since it uses less digits than its factorization.
13086541 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4431.
The product of its (nonzero) digits is 2880, while the sum is 28.
The square root of 13086541 is about 3617.5324462954. The cubic root of 13086541 is about 235.6540764142.
The spelling of 13086541 in words is "thirteen million, eighty-six thousand, five hundred forty-one".
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