Base | Representation |
---|---|
bin | 111111010101111… |
… | …1101101010110101 |
3 | 12111010102020202201 |
4 | 1332223331222311 |
5 | 13323104012010 |
6 | 550523504501 |
7 | 103446026623 |
oct | 17653755265 |
9 | 5433366681 |
10 | 2125454005 |
11 | 9a0844064 |
12 | 4b3988131 |
13 | 27b4608bc |
14 | 1623d4513 |
15 | c68e423a |
hex | 7eafdab5 |
2125454005 has 8 divisors (see below), whose sum is σ = 2550794400. Its totient is φ = 1700196816.
The previous prime is 2125454003. The next prime is 2125454027. The reversal of 2125454005 is 5004545212.
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 2125454005 - 21 = 2125454003 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2125454003) 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, 78526 + ... + 102064.
It is an arithmetic number, because the mean of its divisors is an integer number (318849300).
Almost surely, 22125454005 is an apocalyptic number.
It is an amenable number.
2125454005 is a deficient number, since it is larger than the sum of its proper divisors (425340395).
2125454005 is a wasteful number, since it uses less digits than its factorization.
2125454005 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 41603.
The product of its (nonzero) digits is 8000, while the sum is 28.
The square root of 2125454005 is about 46102.6463990951. The cubic root of 2125454005 is about 1285.7323476093.
Adding to 2125454005 its reverse (5004545212), we get a palindrome (7129999217).
The spelling of 2125454005 in words is "two billion, one hundred twenty-five million, four hundred fifty-four thousand, five".
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