Base | Representation |
---|---|
bin | 110010100101… |
… | …010111010101 |
3 | 220221200122012 |
4 | 302211113111 |
5 | 11343311440 |
6 | 1152114005 |
7 | 220465415 |
oct | 62452725 |
9 | 26850565 |
10 | 13260245 |
11 | 7537689 |
12 | 4535905 |
13 | 29937cb |
14 | 1a92645 |
15 | 126de65 |
hex | ca55d5 |
13260245 has 16 divisors (see below), whose sum is σ = 16466160. Its totient is φ = 10243584.
The previous prime is 13260239. The next prime is 13260253. The reversal of 13260245 is 54206231.
It can be written as a sum of positive squares in 8 ways, for example, as 54289 + 13205956 = 233^2 + 3634^2 .
It is a cyclic number.
It is not a de Polignac number, because 13260245 - 220 = 12211669 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 13260245.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42209 + ... + 42521.
It is an arithmetic number, because the mean of its divisors is an integer number (1029135).
Almost surely, 213260245 is an apocalyptic number.
It is an amenable number.
13260245 is a deficient number, since it is larger than the sum of its proper divisors (3205915).
13260245 is a wasteful number, since it uses less digits than its factorization.
13260245 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 584.
The product of its (nonzero) digits is 1440, while the sum is 23.
The square root of 13260245 is about 3641.4619316972. The cubic root of 13260245 is about 236.6921471827.
Adding to 13260245 its reverse (54206231), we get a palindrome (67466476).
The spelling of 13260245 in words is "thirteen million, two hundred sixty thousand, two hundred forty-five".
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