Base | Representation |
---|---|
bin | 111111001101101… |
… | …1110000000101110 |
3 | 12110211021120101111 |
4 | 1332123132000232 |
5 | 13321002130110 |
6 | 550251102234 |
7 | 103364210365 |
oct | 17633360056 |
9 | 5424246344 |
10 | 2121130030 |
11 | 999360428 |
12 | 4b244197a |
13 | 27a5a8736 |
14 | 1619ca7dc |
15 | c633ce8a |
hex | 7e6de02e |
2121130030 has 16 divisors (see below), whose sum is σ = 3818955600. Its totient is φ = 848247232.
The previous prime is 2121130009. The next prime is 2121130031. The reversal of 2121130030 is 300311212.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2121130031) 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, 22146 + ... + 68794.
It is an arithmetic number, because the mean of its divisors is an integer number (238684725).
Almost surely, 22121130030 is an apocalyptic number.
2121130030 is a deficient number, since it is larger than the sum of its proper divisors (1697825570).
2121130030 is a wasteful number, since it uses less digits than its factorization.
2121130030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 51203.
The product of its (nonzero) digits is 36, while the sum is 13.
The square root of 2121130030 is about 46055.7274397007. The cubic root of 2121130030 is about 1284.8598675330.
Adding to 2121130030 its reverse (300311212), we get a palindrome (2421441242).
The spelling of 2121130030 in words is "two billion, one hundred twenty-one million, one hundred thirty thousand, thirty".
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