Base | Representation |
---|---|
bin | 1011101010100… |
… | …1010110111111 |
3 | 10102001210212020 |
4 | 2322221112333 |
5 | 100011200231 |
6 | 4504411223 |
7 | 1132611534 |
oct | 272512677 |
9 | 112053766 |
10 | 48928191 |
11 | 25689524 |
12 | 14476b13 |
13 | a1a15c0 |
14 | 66d8d8b |
15 | 4467396 |
hex | 2ea95bf |
48928191 has 16 divisors (see below), whose sum is σ = 72680160. Its totient is φ = 29070720.
The previous prime is 48928189. The next prime is 48928213. The reversal of 48928191 is 19182984.
It is not a de Polignac number, because 48928191 - 21 = 48928189 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (48928111) 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, 20500 + ... + 22761.
It is an arithmetic number, because the mean of its divisors is an integer number (4542510).
Almost surely, 248928191 is an apocalyptic number.
48928191 is a deficient number, since it is larger than the sum of its proper divisors (23751969).
48928191 is a wasteful number, since it uses less digits than its factorization.
48928191 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 43306.
The product of its digits is 41472, while the sum is 42.
The square root of 48928191 is about 6994.8689051332. The cubic root of 48928191 is about 365.7517277702.
It can be divided in two parts, 489 and 28191, that added together give a triangular number (28680 = T239).
The spelling of 48928191 in words is "forty-eight million, nine hundred twenty-eight thousand, one hundred ninety-one".
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