Base | Representation |
---|---|
bin | 1100010101110101101… |
… | …1111110011010010001 |
3 | 202021021002221101001021 |
4 | 3011131123332122101 |
5 | 11433204334341423 |
6 | 241222350035441 |
7 | 21214035603361 |
oct | 3053533763221 |
9 | 667232841037 |
10 | 212021012113 |
11 | 81a10374559 |
12 | 351114a8b81 |
13 | 16cbb92c9b1 |
14 | a39480c9a1 |
15 | 57ad99595d |
hex | 315d6fe691 |
212021012113 has 8 divisors (see below), whose sum is σ = 213617741760. Its totient is φ = 210426817200.
The previous prime is 212021012089. The next prime is 212021012153. The reversal of 212021012113 is 311210120212.
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 212021012113 - 213 = 212021003921 is a prime.
It is a super-4 number, since 4×2120210121134 (a number of 46 digits) contains 4444 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (212021012153) 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, 465595 + ... + 800512.
It is an arithmetic number, because the mean of its divisors is an integer number (26702217720).
Almost surely, 2212021012113 is an apocalyptic number.
It is an amenable number.
212021012113 is a deficient number, since it is larger than the sum of its proper divisors (1596729647).
212021012113 is a wasteful number, since it uses less digits than its factorization.
212021012113 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1267367.
The product of its (nonzero) digits is 48, while the sum is 16.
Adding to 212021012113 its reverse (311210120212), we get a palindrome (523231132325).
The spelling of 212021012113 in words is "two hundred twelve billion, twenty-one million, twelve thousand, one hundred thirteen".
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