Base | Representation |
---|---|
bin | 111110100111011… |
… | …0011010111000110 |
3 | 12102102110111121110 |
4 | 1331032303113012 |
5 | 13300331014030 |
6 | 544252225450 |
7 | 103031323602 |
oct | 17516632706 |
9 | 5372414543 |
10 | 2101032390 |
11 | 988a83806 |
12 | 4a776b286 |
13 | 27638ca42 |
14 | 15d078502 |
15 | c46bd1b0 |
hex | 7d3b35c6 |
2101032390 has 32 divisors (see below), whose sum is σ = 5043741696. Its totient is φ = 560134880.
The previous prime is 2101032389. The next prime is 2101032433. The reversal of 2101032390 is 932301012.
It is a happy number.
It is a super-2 number, since 2×21010323902 = 8828674207658224200, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178219 + ... + 189641.
It is an arithmetic number, because the mean of its divisors is an integer number (157616928).
Almost surely, 22101032390 is an apocalyptic number.
2101032390 is an abundant number, since it is smaller than the sum of its proper divisors (2942709306).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2101032390 is a wasteful number, since it uses less digits than its factorization.
2101032390 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17564.
The product of its (nonzero) digits is 324, while the sum is 21.
The square root of 2101032390 is about 45837.0198638611. The cubic root of 2101032390 is about 1280.7889809456.
The spelling of 2101032390 in words is "two billion, one hundred one million, thirty-two thousand, three hundred ninety".
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