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51347960 = 2352355813
BaseRepresentation
bin1100001111100…
…0000111111000
310120121202011022
43003320013320
5101121113320
65032322012
71162310336
oct303700770
9116552138
1051347960
1126a91534
1215243308
13a83ab11
146b68b56
154794325
hex30f81f8

51347960 has 32 divisors (see below), whose sum is σ = 120558240. Its totient is φ = 19645824.

The previous prime is 51347941. The next prime is 51347969. The reversal of 51347960 is 6974315.

51347960 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×513479602 = 5273225992323200, which contains 22 as substring.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 51347960.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51347969) by changing a digit.

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, 26987 + ... + 28826.

It is an arithmetic number, because the mean of its divisors is an integer number (3767445).

Almost surely, 251347960 is an apocalyptic number.

It is an amenable number.

51347960 is an abundant number, since it is smaller than the sum of its proper divisors (69210280).

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

51347960 is a wasteful number, since it uses less digits than its factorization.

51347960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55847 (or 55843 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 51347960 is about 7165.7490885462. The cubic root of 51347960 is about 371.6844551222.

The spelling of 51347960 in words is "fifty-one million, three hundred forty-seven thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 20 23 40 46 92 115 184 230 460 920 55813 111626 223252 279065 446504 558130 1116260 1283699 2232520 2567398 5134796 6418495 10269592 12836990 25673980 51347960