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51326023 = 77332289
BaseRepresentation
bin1100001111001…
…0110001000111
310120120122001211
43003302301013
5101114413043
65032032251
71162156360
oct303626107
9116518054
1051326023
1126a77001
1215232687
13a830b38
146b60b67
15478ca9d
hex30f2c47

51326023 has 4 divisors (see below), whose sum is σ = 58658320. Its totient is φ = 43993728.

The previous prime is 51326017. The next prime is 51326059. The reversal of 51326023 is 32062315.

51326023 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 a de Polignac number, because none of the positive numbers 2k-51326023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51325985 and 51326003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51326083) 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, 3666138 + ... + 3666151.

It is an arithmetic number, because the mean of its divisors is an integer number (14664580).

Almost surely, 251326023 is an apocalyptic number.

51326023 is a deficient number, since it is larger than the sum of its proper divisors (7332297).

51326023 is an equidigital number, since it uses as much as digits as its factorization.

51326023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7332296.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 51326023 is about 7164.2182406736. The cubic root of 51326023 is about 371.6315169379.

Adding to 51326023 its reverse (32062315), we get a palindrome (83388338).

The spelling of 51326023 in words is "fifty-one million, three hundred twenty-six thousand, twenty-three".

Divisors: 1 7 7332289 51326023