Base | Representation |
---|---|
bin | 111001110010… |
… | …010001001101 |
3 | 1001111121022002 |
4 | 321302101031 |
5 | 12334214414 |
6 | 1300402045 |
7 | 242520404 |
oct | 71622115 |
9 | 31447262 |
10 | 15148109 |
11 | 8606aa9 |
12 | 50a6325 |
13 | 31a4ba2 |
14 | 202463b |
15 | 14e34de |
hex | e7244d |
15148109 has 2 divisors, whose sum is σ = 15148110. Its totient is φ = 15148108.
The previous prime is 15148103. The next prime is 15148123. The reversal of 15148109 is 90184151.
15148109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 14845609 + 302500 = 3853^2 + 550^2 .
It is a cyclic number.
It is not a de Polignac number, because 15148109 - 24 = 15148093 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (15148103) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7574054 + 7574055.
It is an arithmetic number, because the mean of its divisors is an integer number (7574055).
Almost surely, 215148109 is an apocalyptic number.
It is an amenable number.
15148109 is a deficient number, since it is larger than the sum of its proper divisors (1).
15148109 is an equidigital number, since it uses as much as digits as its factorization.
15148109 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1440, while the sum is 29.
The square root of 15148109 is about 3892.0571681310. The cubic root of 15148109 is about 247.4302575319.
The spelling of 15148109 in words is "fifteen million, one hundred forty-eight thousand, one hundred nine".
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