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51334180 = 2252566709
BaseRepresentation
bin1100001111010…
…0110000100100
310120121001020221
43003310300210
5101120143210
65032134124
71162222222
oct303646044
9116531227
1051334180
1126a82147
1215237344
13a834771
146b63b12
1547901da
hex30f4c24

51334180 has 12 divisors (see below), whose sum is σ = 107801820. Its totient is φ = 20533664.

The previous prime is 51334141. The next prime is 51334193. The reversal of 51334180 is 8143315.

It can be written as a sum of positive squares in 2 ways, for example, as 12096484 + 39237696 = 3478^2 + 6264^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1283335 + ... + 1283374.

It is an arithmetic number, because the mean of its divisors is an integer number (8983485).

Almost surely, 251334180 is an apocalyptic number.

It is an amenable number.

51334180 is an abundant number, since it is smaller than the sum of its proper divisors (56467640).

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

51334180 is a wasteful number, since it uses less digits than its factorization.

51334180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2566718 (or 2566716 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 51334180 is about 7164.7875055720. The cubic root of 51334180 is about 371.6512031032.

Adding to 51334180 its reverse (8143315), we get a palindrome (59477495).

The spelling of 51334180 in words is "fifty-one million, three hundred thirty-four thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 2566709 5133418 10266836 12833545 25667090 51334180