Base | Representation |
---|---|
bin | 11010010110111111… |
… | …011101001000101101 |
3 | 2201001111010102020211 |
4 | 122112333131020231 |
5 | 430431033124324 |
6 | 21000251542421 |
7 | 2021242464004 |
oct | 322677351055 |
9 | 81044112224 |
10 | 28303020589 |
11 | 11004354308 |
12 | 559a75aa11 |
13 | 289093567c |
14 | 1526d0bc3b |
15 | b09b70294 |
hex | 696fdd22d |
28303020589 has 4 divisors (see below), whose sum is σ = 28307780956. Its totient is φ = 28298260224.
The previous prime is 28303020587. The next prime is 28303020593. The reversal of 28303020589 is 98502030382.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 5064457225 + 23238563364 = 71165^2 + 152442^2 .
It is a cyclic number.
It is not a de Polignac number, because 28303020589 - 21 = 28303020587 is a prime.
It is a super-2 number, since 2×283030205892 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28303020587) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2371254 + ... + 2383159.
It is an arithmetic number, because the mean of its divisors is an integer number (7076945239).
Almost surely, 228303020589 is an apocalyptic number.
It is an amenable number.
28303020589 is a deficient number, since it is larger than the sum of its proper divisors (4760367).
28303020589 is an equidigital number, since it uses as much as digits as its factorization.
28303020589 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4760366.
The product of its (nonzero) digits is 103680, while the sum is 40.
The spelling of 28303020589 in words is "twenty-eight billion, three hundred three million, twenty thousand, five hundred eighty-nine".
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