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2050789 = 13732161
BaseRepresentation
bin111110100101011100101
310212012011011
413310223211
51011111124
6111542221
723300656
oct7645345
93765134
102050789
111180874
1282a971
1356a5b0
143b552d
152a7994
hex1f4ae5

2050789 has 8 divisors (see below), whose sum is σ = 2239832. Its totient is φ = 1866240.

The previous prime is 2050787. The next prime is 2050813. The reversal of 2050789 is 9870502.

It can be written as a sum of positive squares in 4 ways, for example, as 173889 + 1876900 = 417^2 + 1370^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2050789 - 21 = 2050787 is a prime.

It is a Duffinian number.

2050789 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2050789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2050787) 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 7 ways as a sum of consecutive naturals, for example, 132 + ... + 2029.

It is an arithmetic number, because the mean of its divisors is an integer number (279979).

22050789 is an apocalyptic number.

It is an amenable number.

2050789 is a deficient number, since it is larger than the sum of its proper divisors (189043).

2050789 is a wasteful number, since it uses less digits than its factorization.

2050789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2247.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 2050789 is about 1432.0576105730. The cubic root of 2050789 is about 127.0497046437.

The spelling of 2050789 in words is "two million, fifty thousand, seven hundred eighty-nine".

Divisors: 1 13 73 949 2161 28093 157753 2050789