Base | Representation |
---|---|
bin | 110101011111… |
… | …1110011101011 |
3 | 1221210000110202 |
4 | 1222333303223 |
5 | 24140023434 |
6 | 2441102415 |
7 | 460260254 |
oct | 152776353 |
9 | 57700422 |
10 | 28048619 |
11 | 14918385 |
12 | 9487a0b |
13 | 5a70a21 |
14 | 3a21b2b |
15 | 26e0a7e |
hex | 1abfceb |
28048619 has 2 divisors, whose sum is σ = 28048620. Its totient is φ = 28048618.
The previous prime is 28048591. The next prime is 28048637. The reversal of 28048619 is 91684082.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 28048619 - 216 = 27983083 is a prime.
It is a super-2 number, since 2×280486192 = 1573450055614322, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (28048639) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14024309 + 14024310.
It is an arithmetic number, because the mean of its divisors is an integer number (14024310).
Almost surely, 228048619 is an apocalyptic number.
28048619 is a deficient number, since it is larger than the sum of its proper divisors (1).
28048619 is an equidigital number, since it uses as much as digits as its factorization.
28048619 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 27648, while the sum is 38.
The square root of 28048619 is about 5296.0946932622. The cubic root of 28048619 is about 303.8345526045.
The spelling of 28048619 in words is "twenty-eight million, forty-eight thousand, six hundred nineteen".
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