Base | Representation |
---|---|
bin | 110010100010… |
… | …111100111101 |
3 | 220221012002021 |
4 | 302202330331 |
5 | 11343002430 |
6 | 1152000141 |
7 | 220424542 |
oct | 62427475 |
9 | 26835067 |
10 | 13250365 |
11 | 7530217 |
12 | 4530051 |
13 | 298c16b |
14 | 1a8cbc9 |
15 | 126b07a |
hex | ca2f3d |
13250365 has 4 divisors (see below), whose sum is σ = 15900444. Its totient is φ = 10600288.
The previous prime is 13250357. The next prime is 13250383. The reversal of 13250365 is 56305231.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56305231 = 37 ⋅1521763.
It can be written as a sum of positive squares in 2 ways, for example, as 8982009 + 4268356 = 2997^2 + 2066^2 .
It is a cyclic number.
It is not a de Polignac number, because 13250365 - 23 = 13250357 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1325032 + ... + 1325041.
It is an arithmetic number, because the mean of its divisors is an integer number (3975111).
Almost surely, 213250365 is an apocalyptic number.
It is an amenable number.
13250365 is a deficient number, since it is larger than the sum of its proper divisors (2650079).
13250365 is an equidigital number, since it uses as much as digits as its factorization.
13250365 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2650078.
The product of its (nonzero) digits is 2700, while the sum is 25.
The square root of 13250365 is about 3640.1050809008. The cubic root of 13250365 is about 236.6333473779.
Adding to 13250365 its reverse (56305231), we get a palindrome (69555596).
The spelling of 13250365 in words is "thirteen million, two hundred fifty thousand, three hundred sixty-five".
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