Base | Representation |
---|---|
bin | 1110010100011… |
… | …10101100010011 |
3 | 22101000211120211 |
4 | 13022032230103 |
5 | 221222402011 |
6 | 15530344551 |
7 | 2656010203 |
oct | 712165423 |
9 | 271024524 |
10 | 120122131 |
11 | 61895598 |
12 | 3428b157 |
13 | 1bb6a6ac |
14 | 11d4c403 |
15 | a82bb21 |
hex | 728eb13 |
120122131 has 4 divisors (see below), whose sum is σ = 121814064. Its totient is φ = 118430200.
The previous prime is 120122111. The next prime is 120122203. The reversal of 120122131 is 131221021.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 120122131 - 25 = 120122099 is a prime.
It is a super-2 number, since 2×1201221312 = 28858652711962322, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (120122111) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 845860 + ... + 846001.
It is an arithmetic number, because the mean of its divisors is an integer number (30453516).
Almost surely, 2120122131 is an apocalyptic number.
120122131 is a deficient number, since it is larger than the sum of its proper divisors (1691933).
120122131 is an equidigital number, since it uses as much as digits as its factorization.
120122131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1691932.
The product of its (nonzero) digits is 24, while the sum is 13.
The square root of 120122131 is about 10960.0242244258. The cubic root of 120122131 is about 493.4096919891.
Adding to 120122131 its reverse (131221021), we get a palindrome (251343152).
It can be divided in two parts, 1201 and 22131, that added together give a palindrome (23332).
The spelling of 120122131 in words is "one hundred twenty million, one hundred twenty-two thousand, one hundred thirty-one".
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