Base | Representation |
---|---|
bin | 11110110111100111111… |
… | …011110101101101010111 |
3 | 21111210110202012110020021 |
4 | 132313213323311231113 |
5 | 234223420341202221 |
6 | 4302303313250011 |
7 | 306155020225633 |
oct | 36674773655527 |
9 | 7453422173207 |
10 | 2121310100311 |
11 | 748708281736 |
12 | 2a315a563907 |
13 | 125066cb1b0c |
14 | 74959bc5dc3 |
15 | 3a2a7ebb041 |
hex | 1ede7ef5b57 |
2121310100311 has 8 divisors (see below), whose sum is σ = 2135633108400. Its totient is φ = 2106988239552.
The previous prime is 2121310100303. The next prime is 2121310100369. The reversal of 2121310100311 is 1130010131212.
It is a happy number.
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 2121310100311 - 23 = 2121310100303 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2121310100011) 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, 3600691 + ... + 4148203.
It is an arithmetic number, because the mean of its divisors is an integer number (266954138550).
Almost surely, 22121310100311 is an apocalyptic number.
2121310100311 is a deficient number, since it is larger than the sum of its proper divisors (14323008089).
2121310100311 is a wasteful number, since it uses less digits than its factorization.
2121310100311 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 573665.
The product of its (nonzero) digits is 36, while the sum is 16.
Adding to 2121310100311 its reverse (1130010131212), we get a palindrome (3251320231523).
The spelling of 2121310100311 in words is "two trillion, one hundred twenty-one billion, three hundred ten million, one hundred thousand, three hundred eleven".
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