Base | Representation |
---|---|
bin | 110010101100… |
… | …101011001001 |
3 | 221000012201002 |
4 | 302230223021 |
5 | 11400241220 |
6 | 1152504345 |
7 | 220651616 |
oct | 62545311 |
9 | 27005632 |
10 | 13290185 |
11 | 7558127 |
12 | 454b0b5 |
13 | 29a431c |
14 | 1a9d50d |
15 | 1277c75 |
hex | cacac9 |
13290185 has 8 divisors (see below), whose sum is σ = 15991560. Its totient is φ = 10603264.
The previous prime is 13290181. The next prime is 13290197. The reversal of 13290185 is 58109231.
13290185 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 4 ways, for example, as 11449 + 13278736 = 107^2 + 3644^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 13290185 - 22 = 13290181 is a prime.
It is not an unprimeable number, because it can be changed into a prime (13290181) 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, 1472 + ... + 5361.
It is an arithmetic number, because the mean of its divisors is an integer number (1998945).
Almost surely, 213290185 is an apocalyptic number.
It is an amenable number.
13290185 is a deficient number, since it is larger than the sum of its proper divisors (2701375).
13290185 is an equidigital number, since it uses as much as digits as its factorization.
13290185 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7227.
The product of its (nonzero) digits is 2160, while the sum is 29.
The square root of 13290185 is about 3645.5706000570. The cubic root of 13290185 is about 236.8701538495.
The spelling of 13290185 in words is "thirteen million, two hundred ninety thousand, one hundred eighty-five".
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