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51032132 = 2238932797
BaseRepresentation
bin1100001010101…
…1000001000100
310120000200220222
43002223001010
5101031012012
65021443512
71156523504
oct302530104
9116020828
1051032132
1126896218
1215110598
13a75a138
146ac5a04
154730972
hex30ab044

51032132 has 12 divisors (see below), whose sum is σ = 89538540. Its totient is φ = 25449696.

The previous prime is 51032087. The next prime is 51032143. The reversal of 51032132 is 23123015.

It can be written as a sum of positive squares in 2 ways, for example, as 36409156 + 14622976 = 6034^2 + 3824^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51032132.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14843 + ... + 17954.

It is an arithmetic number, because the mean of its divisors is an integer number (7461545).

Almost surely, 251032132 is an apocalyptic number.

It is an amenable number.

51032132 is a deficient number, since it is larger than the sum of its proper divisors (38506408).

51032132 is a wasteful number, since it uses less digits than its factorization.

51032132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33190 (or 33188 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 51032132 is about 7143.6777642892. The cubic root of 51032132 is about 370.9208424489.

Adding to 51032132 its reverse (23123015), we get a palindrome (74155147).

The spelling of 51032132 in words is "fifty-one million, thirty-two thousand, one hundred thirty-two".

Divisors: 1 2 4 389 778 1556 32797 65594 131188 12758033 25516066 51032132