Base | Representation |
---|---|
bin | 1110010100010… |
… | …10000011011011 |
3 | 22100222212112010 |
4 | 13022022003123 |
5 | 221221300011 |
6 | 15530121003 |
7 | 2655600621 |
oct | 712120333 |
9 | 270885463 |
10 | 120103131 |
11 | 61882295 |
12 | 34280163 |
13 | 1bb61b55 |
14 | 11d45511 |
15 | a8261a6 |
hex | 728a0db |
120103131 has 8 divisors (see below), whose sum is σ = 160454160. Its totient is φ = 79910432.
The previous prime is 120103129. The next prime is 120103133. The reversal of 120103131 is 131301021.
120103131 = 2092 + 2102 + ... + 7172.
It is an interprime number because it is at equal distance from previous prime (120103129) and next prime (120103133).
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 120103131 - 21 = 120103129 is a prime.
It is a super-2 number, since 2×1201031312 = 28849524152006322, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (120103133) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37800 + ... + 40853.
It is an arithmetic number, because the mean of its divisors is an integer number (20056770).
Almost surely, 2120103131 is an apocalyptic number.
120103131 is a deficient number, since it is larger than the sum of its proper divisors (40351029).
120103131 is an equidigital number, since it uses as much as digits as its factorization.
120103131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 79165.
The product of its (nonzero) digits is 18, while the sum is 12.
The square root of 120103131 is about 10959.1574037423. The cubic root of 120103131 is about 493.3836760268.
Adding to 120103131 its reverse (131301021), we get a palindrome (251404152).
The spelling of 120103131 in words is "one hundred twenty million, one hundred three thousand, one hundred thirty-one".
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