Base | Representation |
---|---|
bin | 111100110011011… |
… | …101010001100101 |
3 | 2122002112120121012 |
4 | 330303131101211 |
5 | 4042122402323 |
6 | 245120432005 |
7 | 34164616145 |
oct | 7463352145 |
9 | 2562476535 |
10 | 1020122213 |
11 | 483917a10 |
12 | 245778605 |
13 | 133464116 |
14 | 996a8925 |
15 | 5e858678 |
hex | 3ccdd465 |
1020122213 has 16 divisors (see below), whose sum is σ = 1198307520. Its totient is φ = 858028800.
The previous prime is 1020122203. The next prime is 1020122219. The reversal of 1020122213 is 3122210201.
It is a happy number.
It is a cyclic number.
It is not a de Polignac number, because 1020122213 - 28 = 1020121957 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 (1020122219) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35198 + ... + 57263.
It is an arithmetic number, because the mean of its divisors is an integer number (74894220).
Almost surely, 21020122213 is an apocalyptic number.
It is an amenable number.
1020122213 is a deficient number, since it is larger than the sum of its proper divisors (178185307).
1020122213 is a wasteful number, since it uses less digits than its factorization.
1020122213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 92548.
The product of its (nonzero) digits is 48, while the sum is 14.
The square root of 1020122213 is about 31939.3521067663. The cubic root of 1020122213 is about 1006.6629113471.
Adding to 1020122213 its reverse (3122210201), we get a palindrome (4142332414).
The spelling of 1020122213 in words is "one billion, twenty million, one hundred twenty-two thousand, two hundred thirteen".
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