Base | Representation |
---|---|
bin | 11100101101001010010101 |
3 | 112011022101012 |
4 | 130231022111 |
5 | 3411300023 |
6 | 425142005 |
7 | 120650546 |
oct | 34551225 |
9 | 15138335 |
10 | 7525013 |
11 | 427a721 |
12 | 262a905 |
13 | 1736192 |
14 | ddc4cd |
15 | 9d9978 |
hex | 72d295 |
7525013 has 2 divisors, whose sum is σ = 7525014. Its totient is φ = 7525012.
The previous prime is 7525003. The next prime is 7525027. The reversal of 7525013 is 3105257.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 4695889 + 2829124 = 2167^2 + 1682^2 .
It is an emirp because it is prime and its reverse (3105257) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 7525013 - 24 = 7524997 is a prime.
It is a Chen prime.
It is a self number, because there is not a number n which added to its sum of digits gives 7525013.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (7525003) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3762506 + 3762507.
It is an arithmetic number, because the mean of its divisors is an integer number (3762507).
Almost surely, 27525013 is an apocalyptic number.
It is an amenable number.
7525013 is a deficient number, since it is larger than the sum of its proper divisors (1).
7525013 is an equidigital number, since it uses as much as digits as its factorization.
7525013 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1050, while the sum is 23.
The square root of 7525013 is about 2743.1757143865. The cubic root of 7525013 is about 195.9607463387.
The spelling of 7525013 in words is "seven million, five hundred twenty-five thousand, thirteen".
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