Base | Representation |
---|---|
bin | 1011110101011… |
… | …1011101000000 |
3 | 10110102001000221 |
4 | 2331113131000 |
5 | 100202010110 |
6 | 4531552424 |
7 | 1141641523 |
oct | 275273500 |
9 | 113361027 |
10 | 49641280 |
11 | 26026257 |
12 | 1475b714 |
13 | a391050 |
14 | 6842bba |
15 | 45587da |
hex | 2f57740 |
49641280 has 56 divisors (see below), whose sum is σ = 127311912. Its totient is φ = 18327552.
The previous prime is 49641269. The next prime is 49641289. The reversal of 49641280 is 8214694.
It can be written as a sum of positive squares in 4 ways, for example, as 4804864 + 44836416 = 2192^2 + 6696^2 .
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (49641289) 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, 1807 + ... + 10126.
It is an arithmetic number, because the mean of its divisors is an integer number (2273427).
Almost surely, 249641280 is an apocalyptic number.
49641280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.
It is an amenable number.
49641280 is an abundant number, since it is smaller than the sum of its proper divisors (77670632).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
49641280 is a wasteful number, since it uses less digits than its factorization.
49641280 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11963 (or 11953 counting only the distinct ones).
The product of its (nonzero) digits is 13824, while the sum is 34.
The square root of 49641280 is about 7045.6568182108. The cubic root of 49641280 is about 367.5200106339.
The spelling of 49641280 in words is "forty-nine million, six hundred forty-one thousand, two hundred eighty".
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