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51506060 = 2255214943
BaseRepresentation
bin1100010001111…
…0101110001100
310120220210000212
43010132232030
5101141143220
65035541552
71163536304
oct304365614
9116823025
1051506060
112708a2a1
12152ba8b8
13a894a78
146baa604
1547c60c5
hex311eb8c

51506060 has 24 divisors (see below), whose sum is σ = 108392256. Its totient is φ = 20558720.

The previous prime is 51506057. The next prime is 51506101. The reversal of 51506060 is 6060515.

51506060 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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, 7949 + ... + 12891.

It is an arithmetic number, because the mean of its divisors is an integer number (4516344).

Almost surely, 251506060 is an apocalyptic number.

It is an amenable number.

51506060 is an abundant number, since it is smaller than the sum of its proper divisors (56886196).

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

51506060 is a wasteful number, since it uses less digits than its factorization.

51506060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5473 (or 5471 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 51506060 is about 7176.7722549904. The cubic root of 51506060 is about 372.0655355306.

Adding to 51506060 its reverse (6060515), we get a palindrome (57566575).

The spelling of 51506060 in words is "fifty-one million, five hundred six thousand, sixty".

Divisors: 1 2 4 5 10 20 521 1042 2084 2605 4943 5210 9886 10420 19772 24715 49430 98860 2575303 5150606 10301212 12876515 25753030 51506060