Base | Representation |
---|---|
bin | 111101010001111… |
… | …100101001111011 |
3 | 2122122120122201211 |
4 | 331101330221323 |
5 | 4101144140232 |
6 | 250004023551 |
7 | 34322556010 |
oct | 7521745173 |
9 | 2578518654 |
10 | 1028115067 |
11 | 488387081 |
12 | 248391bb7 |
13 | 135002215 |
14 | 9a789707 |
15 | 603d6a47 |
hex | 3d47ca7b |
1028115067 has 8 divisors (see below), whose sum is σ = 1192526336. Its totient is φ = 868088232.
The previous prime is 1028115017. The next prime is 1028115071. The reversal of 1028115067 is 7605118201.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 1028115067 - 211 = 1028113019 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1028115017) 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 in 7 ways as a sum of consecutive naturals, for example, 1095603 + ... + 1096540.
It is an arithmetic number, because the mean of its divisors is an integer number (149065792).
Almost surely, 21028115067 is an apocalyptic number.
1028115067 is a deficient number, since it is larger than the sum of its proper divisors (164411269).
1028115067 is an equidigital number, since it uses as much as digits as its factorization.
1028115067 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2192217.
The product of its (nonzero) digits is 3360, while the sum is 31.
The square root of 1028115067 is about 32064.2334541152. The cubic root of 1028115067 is about 1009.2852070877.
The spelling of 1028115067 in words is "one billion, twenty-eight million, one hundred fifteen thousand, sixty-seven".
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