Base | Representation |
---|---|
bin | 11010001100111000… |
… | …111011101100110011 |
3 | 2200121200012211200112 |
4 | 122030320323230303 |
5 | 430104141213421 |
6 | 20531355211535 |
7 | 2014114063313 |
oct | 321470735463 |
9 | 80550184615 |
10 | 28133538611 |
11 | 10a27715a62 |
12 | 5551a46bab |
13 | 28647a5089 |
14 | 150c5d1443 |
15 | ae9d4345b |
hex | 68ce3bb33 |
28133538611 has 8 divisors (see below), whose sum is σ = 28624072704. Its totient is φ = 27643950720.
The previous prime is 28133538607. The next prime is 28133538617. The reversal of 28133538611 is 11683533182.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 28133538611 - 22 = 28133538607 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (28133538617) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176435 + ... + 295628.
It is an arithmetic number, because the mean of its divisors is an integer number (3578009088).
Almost surely, 228133538611 is an apocalyptic number.
28133538611 is a deficient number, since it is larger than the sum of its proper divisors (490534093).
28133538611 is an equidigital number, since it uses as much as digits as its factorization.
28133538611 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 473101.
The product of its digits is 103680, while the sum is 41.
The spelling of 28133538611 in words is "twenty-eight billion, one hundred thirty-three million, five hundred thirty-eight thousand, six hundred eleven".
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