Base | Representation |
---|---|
bin | 111101101110100… |
… | …0001010110101010 |
3 | 12100100100010112001 |
4 | 1323131001112222 |
5 | 13220212032130 |
6 | 541305041214 |
7 | 102216645250 |
oct | 17335012652 |
9 | 5310303461 |
10 | 2071205290 |
11 | 973161210 |
12 | 49978620a |
13 | 27014867b |
14 | 1591125d0 |
15 | c1c7a6ca |
hex | 7b7415aa |
2071205290 has 32 divisors (see below), whose sum is σ = 4648109184. Its totient is φ = 645570240.
The previous prime is 2071205273. The next prime is 2071205293. The reversal of 2071205290 is 925021702.
It is not an unprimeable number, because it can be changed into a prime (2071205293) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1344169 + ... + 1345708.
It is an arithmetic number, because the mean of its divisors is an integer number (145253412).
Almost surely, 22071205290 is an apocalyptic number.
2071205290 is an abundant number, since it is smaller than the sum of its proper divisors (2576903894).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2071205290 is a wasteful number, since it uses less digits than its factorization.
2071205290 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2689902.
The product of its (nonzero) digits is 2520, while the sum is 28.
The square root of 2071205290 is about 45510.4964815810. The cubic root of 2071205290 is about 1274.6992067573.
Adding to 2071205290 its reverse (925021702), we get a palindrome (2996226992).
The spelling of 2071205290 in words is "two billion, seventy-one million, two hundred five thousand, two hundred ninety".
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