Base | Representation |
---|---|
bin | 1001101101010101110101 |
3 | 11210022002202 |
4 | 21231111311 |
5 | 1122420023 |
6 | 130314245 |
7 | 30426602 |
oct | 11552565 |
9 | 4708082 |
10 | 2545013 |
11 | 1489119 |
12 | a28985 |
13 | 6b1533 |
14 | 4a36a9 |
15 | 354128 |
hex | 26d575 |
2545013 has 2 divisors, whose sum is σ = 2545014. Its totient is φ = 2545012.
The previous prime is 2545001. The next prime is 2545021. The reversal of 2545013 is 3105452.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 2427364 + 117649 = 1558^2 + 343^2 .
It is a cyclic number.
It is not a de Polignac number, because 2545013 - 28 = 2544757 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2545073) by changing a digit.
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 as a sum of consecutive naturals, namely, 1272506 + 1272507.
It is an arithmetic number, because the mean of its divisors is an integer number (1272507).
22545013 is an apocalyptic number.
It is an amenable number.
2545013 is a deficient number, since it is larger than the sum of its proper divisors (1).
2545013 is an equidigital number, since it uses as much as digits as its factorization.
2545013 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 600, while the sum is 20.
The square root of 2545013 is about 1595.3096878036. The cubic root of 2545013 is about 136.5306009117.
It can be divided in two parts, 2 and 545013, that multiplied together give a triangular number (1090026 = T1476).
The spelling of 2545013 in words is "two million, five hundred forty-five thousand, thirteen".
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