Base | Representation |
---|---|
bin | 110111111110100110… |
… | …1010001001101101101 |
3 | 102111021210112001201122 |
4 | 1233331031101031231 |
5 | 3432143312343041 |
6 | 131120313150325 |
7 | 11453654050511 |
oct | 1577515211555 |
9 | 374253461648 |
10 | 120212231021 |
11 | 46a88741463 |
12 | 1b36a9bb3a5 |
13 | b44a16485c |
14 | 5b655d0141 |
15 | 31d8928c4b |
hex | 1bfd35136d |
120212231021 has 8 divisors (see below), whose sum is σ = 123104478720. Its totient is φ = 117333922608.
The previous prime is 120212230979. The next prime is 120212231023. The reversal of 120212231021 is 120132212021.
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 120212231021 - 210 = 120212229997 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 (120212231023) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3467366 + ... + 3501863.
It is an arithmetic number, because the mean of its divisors is an integer number (15388059840).
Almost surely, 2120212231021 is an apocalyptic number.
It is an amenable number.
120212231021 is a deficient number, since it is larger than the sum of its proper divisors (2892247699).
120212231021 is an equidigital number, since it uses as much as digits as its factorization.
120212231021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6969643.
The product of its (nonzero) digits is 96, while the sum is 17.
Adding to 120212231021 its reverse (120132212021), we get a palindrome (240344443042).
The spelling of 120212231021 in words is "one hundred twenty billion, two hundred twelve million, two hundred thirty-one thousand, twenty-one".
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