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51441212 = 2299712899
BaseRepresentation
bin1100010000111…
…0111000111100
310120210111002002
43010032320330
5101132104322
65034321432
71163146244
oct304167074
9116714062
1051441212
11270455a9
1215289278
13a8713b4
146b90b24
1547b1c92
hex310ee3c

51441212 has 12 divisors (see below), whose sum is σ = 90119400. Its totient is φ = 25692816.

The previous prime is 51441197. The next prime is 51441233. The reversal of 51441212 is 21214415.

It is a happy number.

51441212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 2462 + ... + 10437.

It is an arithmetic number, because the mean of its divisors is an integer number (7509950).

Almost surely, 251441212 is an apocalyptic number.

It is an amenable number.

51441212 is a deficient number, since it is larger than the sum of its proper divisors (38678188).

51441212 is a wasteful number, since it uses less digits than its factorization.

51441212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13900 (or 13898 counting only the distinct ones).

The product of its digits is 320, while the sum is 20.

The square root of 51441212 is about 7172.2529235938. The cubic root of 51441212 is about 371.9093219458.

Adding to 51441212 its reverse (21214415), we get a palindrome (72655627).

The spelling of 51441212 in words is "fifty-one million, four hundred forty-one thousand, two hundred twelve".

Divisors: 1 2 4 997 1994 3988 12899 25798 51596 12860303 25720606 51441212