Base | Representation |
---|---|
bin | 101111111101… |
… | …0010011100111 |
3 | 1202022101000211 |
4 | 1133322103213 |
5 | 22414030003 |
6 | 2254520251 |
7 | 423464521 |
oct | 137722347 |
9 | 52271024 |
10 | 25142503 |
11 | 13212a31 |
12 | 8506087 |
13 | 5294029 |
14 | 34a6a11 |
15 | 231996d |
hex | 17fa4e7 |
25142503 has 2 divisors, whose sum is σ = 25142504. Its totient is φ = 25142502.
The previous prime is 25142501. The next prime is 25142527. The reversal of 25142503 is 30524152.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 25142503 - 21 = 25142501 is a prime.
Together with 25142501, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (25142501) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12571251 + 12571252.
It is an arithmetic number, because the mean of its divisors is an integer number (12571252).
Almost surely, 225142503 is an apocalyptic number.
25142503 is a deficient number, since it is larger than the sum of its proper divisors (1).
25142503 is an equidigital number, since it uses as much as digits as its factorization.
25142503 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1200, while the sum is 22.
The square root of 25142503 is about 5014.2300505661. The cubic root of 25142503 is about 292.9562966030.
Adding to 25142503 its reverse (30524152), we get a palindrome (55666655).
The spelling of 25142503 in words is "twenty-five million, one hundred forty-two thousand, five hundred three".
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