Base | Representation |
---|---|
bin | 11010000110100010… |
… | …100111011011001101 |
3 | 2200100020210101121201 |
4 | 122012202213123031 |
5 | 424344404300401 |
6 | 20513032225501 |
7 | 2011351532305 |
oct | 320642473315 |
9 | 80306711551 |
10 | 28027025101 |
11 | 10982585869 |
12 | 552223b291 |
13 | 28486c092a |
14 | 14dc3c6605 |
15 | ae0803b01 |
hex | 6868a76cd |
28027025101 has 8 divisors (see below), whose sum is σ = 28628092800. Its totient is φ = 27426155328.
The previous prime is 28027025087. The next prime is 28027025113. The reversal of 28027025101 is 10152072082.
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 28027025101 - 29 = 28027024589 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 28027025101.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28027025161) 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, 256870 + ... + 349336.
It is an arithmetic number, because the mean of its divisors is an integer number (3578511600).
Almost surely, 228027025101 is an apocalyptic number.
It is an amenable number.
28027025101 is a deficient number, since it is larger than the sum of its proper divisors (601067699).
28027025101 is an equidigital number, since it uses as much as digits as its factorization.
28027025101 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 98963.
The product of its (nonzero) digits is 2240, while the sum is 28.
Adding to 28027025101 its reverse (10152072082), we get a palindrome (38179097183).
It can be divided in two parts, 280270 and 25101, that added together give a triangular number (305371 = T781).
The spelling of 28027025101 in words is "twenty-eight billion, twenty-seven million, twenty-five thousand, one hundred one".
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