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51311627 = 1773173239
BaseRepresentation
bin1100001110111…
…1010000001011
310120112220022122
43003233100023
5101113433002
65031441455
71162066403
oct303572013
9116486278
1051311627
1126a67204
121522628b
13a827413
146b59803
1547886a2
hex30ef40b

51311627 has 16 divisors (see below), whose sum is σ = 55624320. Its totient is φ = 47158272.

The previous prime is 51311591. The next prime is 51311669. The reversal of 51311627 is 72611315.

51311627 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51311627 - 210 = 51310603 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51311596 and 51311605.

It is not an unprimeable number, because it can be changed into a prime (51311677) 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 15 ways as a sum of consecutive naturals, for example, 214574 + ... + 214812.

It is an arithmetic number, because the mean of its divisors is an integer number (3476520).

Almost surely, 251311627 is an apocalyptic number.

51311627 is a deficient number, since it is larger than the sum of its proper divisors (4312693).

51311627 is a wasteful number, since it uses less digits than its factorization.

51311627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502.

The product of its digits is 1260, while the sum is 26.

The square root of 51311627 is about 7163.2134548679. The cubic root of 51311627 is about 371.5967684337.

The spelling of 51311627 in words is "fifty-one million, three hundred eleven thousand, six hundred twenty-seven".

Divisors: 1 17 73 173 239 1241 2941 4063 12629 17447 41347 214693 296599 702899 3018331 51311627