Base | Representation |
---|---|
bin | 11010010000111011… |
… | …000101000101000111 |
3 | 2200210101112220122001 |
4 | 122100323011011013 |
5 | 430224002211213 |
6 | 20542213450131 |
7 | 2015565221446 |
oct | 322073050507 |
9 | 80711486561 |
10 | 28201210183 |
11 | 10a61936683 |
12 | 5570640947 |
13 | 2875809b23 |
14 | 15175a8d5d |
15 | b00c5e1dd |
hex | 690ec5147 |
28201210183 has 4 divisors (see below), whose sum is σ = 28390480200. Its totient is φ = 28011940168.
The previous prime is 28201210159. The next prime is 28201210201. The reversal of 28201210183 is 38101210282.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 28201210183 - 217 = 28201079111 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28201211183) 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, 94634785 + ... + 94635082.
It is an arithmetic number, because the mean of its divisors is an integer number (7097620050).
Almost surely, 228201210183 is an apocalyptic number.
28201210183 is a deficient number, since it is larger than the sum of its proper divisors (189270017).
28201210183 is a wasteful number, since it uses less digits than its factorization.
28201210183 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 189270016.
The product of its (nonzero) digits is 1536, while the sum is 28.
Subtracting 28201210183 from its reverse (38101210282), we obtain a palindrome (9900000099).
The spelling of 28201210183 in words is "twenty-eight billion, two hundred one million, two hundred ten thousand, one hundred eighty-three".
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