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51080050 = 2527220849
BaseRepresentation
bin1100001011011…
…0101101110010
310120010010122201
43002312231302
5101034030200
65022453414
71160113300
oct302665562
9116103581
1051080050
112691921a
121513426a
13a775ba8
146ad9270
15473ec6a
hex30b6b72

51080050 has 36 divisors (see below), whose sum is σ = 110525850. Its totient is φ = 17512320.

The previous prime is 51080047. The next prime is 51080059. The reversal of 51080050 is 5008015.

It can be written as a sum of positive squares in 3 ways, for example, as 47155689 + 3924361 = 6867^2 + 1981^2 .

It is not an unprimeable number, because it can be changed into a prime (51080059) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7975 + ... + 12874.

Almost surely, 251080050 is an apocalyptic number.

51080050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51080050 is an abundant number, since it is smaller than the sum of its proper divisors (59445800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51080050 is a wasteful number, since it uses less digits than its factorization.

51080050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20875 (or 20863 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 51080050 is about 7147.0308520392. The cubic root of 51080050 is about 371.0369015152.

Adding to 51080050 its reverse (5008015), we get a palindrome (56088065).

The spelling of 51080050 in words is "fifty-one million, eighty thousand, fifty".

Divisors: 1 2 5 7 10 14 25 35 49 50 70 98 175 245 350 490 1225 2450 20849 41698 104245 145943 208490 291886 521225 729715 1021601 1042450 1459430 2043202 3648575 5108005 7297150 10216010 25540025 51080050