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51325127 = 77332161
BaseRepresentation
bin1100001111001…
…0100011000111
310120120120211122
43003302203013
5101114401002
65032024155
71162153640
oct303624307
9116516748
1051325127
1126a76367
121523205b
13a8305c9
146b606c7
15478c6a2
hex30f28c7

51325127 has 4 divisors (see below), whose sum is σ = 58657296. Its totient is φ = 43992960.

The previous prime is 51325111. The next prime is 51325129. The reversal of 51325127 is 72152315.

51325127 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51325127 - 24 = 51325111 is a prime.

It is a super-2 number, since 2×513251272 = 5268537323132258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51325096 and 51325105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51325129) 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 3 ways as a sum of consecutive naturals, for example, 3666074 + ... + 3666087.

It is an arithmetic number, because the mean of its divisors is an integer number (14664324).

Almost surely, 251325127 is an apocalyptic number.

51325127 is a deficient number, since it is larger than the sum of its proper divisors (7332169).

51325127 is an equidigital number, since it uses as much as digits as its factorization.

51325127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7332168.

The product of its digits is 2100, while the sum is 26.

The square root of 51325127 is about 7164.1557074089. The cubic root of 51325127 is about 371.6293543976.

The spelling of 51325127 in words is "fifty-one million, three hundred twenty-five thousand, one hundred twenty-seven".

Divisors: 1 7 7332161 51325127