Base | Representation |
---|---|
bin | 1100000110110… |
… | …1101101000101 |
3 | 10112112221102200 |
4 | 3001231231011 |
5 | 100444442442 |
6 | 5012225113 |
7 | 1154426361 |
oct | 301555505 |
9 | 115487380 |
10 | 50780997 |
11 | 26734573 |
12 | 1500b199 |
13 | a69ca37 |
14 | 6a5c2a1 |
15 | 46d134c |
hex | 306db45 |
50780997 has 12 divisors (see below), whose sum is σ = 74175660. Its totient is φ = 33473088.
The previous prime is 50780993. The next prime is 50780999. The reversal of 50780997 is 79908705.
50780997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 2 ways, for example, as 14130081 + 36650916 = 3759^2 + 6054^2 .
It is not a de Polignac number, because 50780997 - 22 = 50780993 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (50780993) 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 11 ways as a sum of consecutive naturals, for example, 30898 + ... + 32499.
It is an arithmetic number, because the mean of its divisors is an integer number (6181305).
Almost surely, 250780997 is an apocalyptic number.
It is an amenable number.
50780997 is a deficient number, since it is larger than the sum of its proper divisors (23394663).
50780997 is a wasteful number, since it uses less digits than its factorization.
50780997 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 63492 (or 63489 counting only the distinct ones).
The product of its (nonzero) digits is 158760, while the sum is 45.
The square root of 50780997 is about 7126.0786551932. The cubic root of 50780997 is about 370.3113935661.
The spelling of 50780997 in words is "fifty million, seven hundred eighty thousand, nine hundred ninety-seven".
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