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51694483 = 227227729
BaseRepresentation
bin1100010100110…
…0101110010011
310121021100111111
43011030232103
5101213210413
65043554151
71165252531
oct305145623
9117240444
1051694483
11271a8915
121538b957
13a92c769
146c19151
154811d3d
hex314cb93

51694483 has 4 divisors (see below), whose sum is σ = 51922440. Its totient is φ = 51466528.

The previous prime is 51694477. The next prime is 51694499. The reversal of 51694483 is 38449615.

51694483 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, and also an emirpimes, since its reverse is a distinct semiprime: 38449615 = 57689923.

It is a cyclic number.

It is not a de Polignac number, because 51694483 - 213 = 51686291 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51694183) 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, 113638 + ... + 114091.

It is an arithmetic number, because the mean of its divisors is an integer number (12980610).

Almost surely, 251694483 is an apocalyptic number.

51694483 is a deficient number, since it is larger than the sum of its proper divisors (227957).

51694483 is a wasteful number, since it uses less digits than its factorization.

51694483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227956.

The product of its digits is 103680, while the sum is 40.

The square root of 51694483 is about 7189.8875512764. The cubic root of 51694483 is about 372.5186886109.

The spelling of 51694483 in words is "fifty-one million, six hundred ninety-four thousand, four hundred eighty-three".

Divisors: 1 227 227729 51694483