Base | Representation |
---|---|
bin | 110111111110110110… |
… | …1010100001111111101 |
3 | 102111022101022212210021 |
4 | 1233331231110033331 |
5 | 3432202440211221 |
6 | 131121213212141 |
7 | 11454115340365 |
oct | 1577555241775 |
9 | 374271285707 |
10 | 120220632061 |
11 | 46a9245a272 |
12 | 1b371791051 |
13 | b44bb1669a |
14 | 5b667799a5 |
15 | 31d9538041 |
hex | 1bfdb543fd |
120220632061 has 2 divisors, whose sum is σ = 120220632062. Its totient is φ = 120220632060.
The previous prime is 120220632041. The next prime is 120220632071. The reversal of 120220632061 is 160236022021.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 118684384036 + 1536248025 = 344506^2 + 39195^2 .
It is an emirp because it is prime and its reverse (160236022021) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 120220632061 - 27 = 120220631933 is a prime.
It is a super-2 number, since 2×1202206320612 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (120220632001) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60110316030 + 60110316031.
It is an arithmetic number, because the mean of its divisors is an integer number (60110316031).
Almost surely, 2120220632061 is an apocalyptic number.
It is an amenable number.
120220632061 is a deficient number, since it is larger than the sum of its proper divisors (1).
120220632061 is an equidigital number, since it uses as much as digits as its factorization.
120220632061 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1728, while the sum is 25.
Adding to 120220632061 its reverse (160236022021), we get a palindrome (280456654082).
The spelling of 120220632061 in words is "one hundred twenty billion, two hundred twenty million, six hundred thirty-two thousand, sixty-one".
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