Base | Representation |
---|---|
bin | 101111111101… |
… | …0101011111101 |
3 | 1202022110011112 |
4 | 1133322223331 |
5 | 22414102221 |
6 | 2254531405 |
7 | 423502205 |
oct | 137725375 |
9 | 52273145 |
10 | 25144061 |
11 | 13214118 |
12 | 8506b65 |
13 | 5294957 |
14 | 34a7405 |
15 | 231a15b |
hex | 17faafd |
25144061 has 2 divisors, whose sum is σ = 25144062. Its totient is φ = 25144060.
The previous prime is 25144043. The next prime is 25144079. The reversal of 25144061 is 16044152.
It is a balanced prime because it is at equal distance from previous prime (25144043) and next prime (25144079).
It can be written as a sum of positive squares in only one way, i.e., 17799961 + 7344100 = 4219^2 + 2710^2 .
It is a cyclic number.
It is not a de Polignac number, because 25144061 - 214 = 25127677 is a prime.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (25144081) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12572030 + 12572031.
It is an arithmetic number, because the mean of its divisors is an integer number (12572031).
Almost surely, 225144061 is an apocalyptic number.
It is an amenable number.
25144061 is a deficient number, since it is larger than the sum of its proper divisors (1).
25144061 is an equidigital number, since it uses as much as digits as its factorization.
25144061 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 960, while the sum is 23.
The square root of 25144061 is about 5014.3854060094. The cubic root of 25144061 is about 292.9623476643.
Subtracting from 25144061 its reverse (16044152), we obtain a palindrome (9099909).
The spelling of 25144061 in words is "twenty-five million, one hundred forty-four thousand, sixty-one".
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