Base | Representation |
---|---|
bin | 1100010010101… |
… | …10101010110010 |
3 | 21012000210210110 |
4 | 12021112222302 |
5 | 202344143232 |
6 | 14122042150 |
7 | 2361316053 |
oct | 611265262 |
9 | 235023713 |
10 | 103115442 |
11 | 5322a181 |
12 | 2a649356 |
13 | 18494871 |
14 | d9a272a |
15 | 90bcacc |
hex | 6256ab2 |
103115442 has 8 divisors (see below), whose sum is σ = 206230896. Its totient is φ = 34371812.
The previous prime is 103115399. The next prime is 103115443. The reversal of 103115442 is 244511301.
It is a sphenic number, since it is the product of 3 distinct primes.
103115442 is an admirable number.
It is not an unprimeable number, because it can be changed into a prime (103115443) 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 3 ways as a sum of consecutive naturals, for example, 8592948 + ... + 8592959.
It is an arithmetic number, because the mean of its divisors is an integer number (25778862).
Almost surely, 2103115442 is an apocalyptic number.
103115442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
103115442 is a wasteful number, since it uses less digits than its factorization.
103115442 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17185912.
The product of its (nonzero) digits is 480, while the sum is 21.
The square root of 103115442 is about 10154.5773915018. The cubic root of 103115442 is about 468.9298755711.
Adding to 103115442 its reverse (244511301), we get a palindrome (347626743).
It can be divided in two parts, 10311 and 5442, that added together give a triangular number (15753 = T177).
The spelling of 103115442 in words is "one hundred three million, one hundred fifteen thousand, four hundred forty-two".
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