Base | Representation |
---|---|
bin | 110010011100… |
… | …110001011111 |
3 | 220212220100212 |
4 | 302130301133 |
5 | 11341200210 |
6 | 1151243035 |
7 | 220261004 |
oct | 62346137 |
9 | 26786325 |
10 | 13225055 |
11 | 75131a8 |
12 | 451947b |
13 | 298079c |
14 | 1a838ab |
15 | 1263805 |
hex | c9cc5f |
13225055 has 4 divisors (see below), whose sum is σ = 15870072. Its totient is φ = 10580040.
The previous prime is 13225039. The next prime is 13225061. The reversal of 13225055 is 55052231.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55052231 = 13 ⋅4234787.
It is not a de Polignac number, because 13225055 - 24 = 13225039 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 13225055.
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, 1322501 + ... + 1322510.
It is an arithmetic number, because the mean of its divisors is an integer number (3967518).
Almost surely, 213225055 is an apocalyptic number.
13225055 is a deficient number, since it is larger than the sum of its proper divisors (2645017).
13225055 is an equidigital number, since it uses as much as digits as its factorization.
13225055 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2645016.
The product of its (nonzero) digits is 1500, while the sum is 23.
The square root of 13225055 is about 3636.6268711541. The cubic root of 13225055 is about 236.4825840477.
Adding to 13225055 its reverse (55052231), we get a palindrome (68277286).
The spelling of 13225055 in words is "thirteen million, two hundred twenty-five thousand, fifty-five".
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