Base | Representation |
---|---|
bin | 1011110111100… |
… | …1100110110000 |
3 | 10110200010220222 |
4 | 2331321212300 |
5 | 100220444133 |
6 | 4534552212 |
7 | 1143063413 |
oct | 275714660 |
9 | 113603828 |
10 | 49781168 |
11 | 26111368 |
12 | 14808668 |
13 | a40c918 |
14 | 687bb7a |
15 | 4584e98 |
hex | 2f799b0 |
49781168 has 40 divisors (see below), whose sum is σ = 105662880. Its totient is φ = 22615040.
The previous prime is 49781167. The next prime is 49781189. The reversal of 49781168 is 86118794.
It is not an unprimeable number, because it can be changed into a prime (49781161) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4733 + ... + 11043.
It is an arithmetic number, because the mean of its divisors is an integer number (2641572).
Almost surely, 249781168 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 49781168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52831440).
49781168 is an abundant number, since it is smaller than the sum of its proper divisors (55881712).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
49781168 is a wasteful number, since it uses less digits than its factorization.
49781168 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6365 (or 6359 counting only the distinct ones).
The product of its digits is 96768, while the sum is 44.
The square root of 49781168 is about 7055.5770848315. The cubic root of 49781168 is about 367.8649078809.
The spelling of 49781168 in words is "forty-nine million, seven hundred eighty-one thousand, one hundred sixty-eight".
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