Base | Representation |
---|---|
bin | 110010000010… |
… | …000001011101 |
3 | 220200100001201 |
4 | 302002001131 |
5 | 11324143420 |
6 | 1145035501 |
7 | 216323365 |
oct | 62020135 |
9 | 26610051 |
10 | 13115485 |
11 | 7448949 |
12 | 4485b91 |
13 | 2942956 |
14 | 1a559a5 |
15 | 124110a |
hex | c8205d |
13115485 has 8 divisors (see below), whose sum is σ = 15915960. Its totient is φ = 10374144.
The previous prime is 13115477. The next prime is 13115489. The reversal of 13115485 is 58451131.
It can be written as a sum of positive squares in 4 ways, for example, as 3844 + 13111641 = 62^2 + 3621^2 .
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 13115485 - 23 = 13115477 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13115489) 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, 14292 + ... + 15181.
It is an arithmetic number, because the mean of its divisors is an integer number (1989495).
Almost surely, 213115485 is an apocalyptic number.
It is an amenable number.
13115485 is a deficient number, since it is larger than the sum of its proper divisors (2800475).
13115485 is an equidigital number, since it uses as much as digits as its factorization.
13115485 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 29567.
The product of its digits is 2400, while the sum is 28.
The square root of 13115485 is about 3621.5307537007. The cubic root of 13115485 is about 235.8276835110.
The spelling of 13115485 in words is "thirteen million, one hundred fifteen thousand, four hundred eighty-five".
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