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51933841 = 107485363
BaseRepresentation
bin1100011000011…
…1001010010001
310121201111211121
43012013022101
5101243340331
65053042241
71200300421
oct306071221
9117644747
1051933841
1127351733
1215486381
13a9b46ab
146c7c481
15485cc11
hex3187291

51933841 has 4 divisors (see below), whose sum is σ = 52419312. Its totient is φ = 51448372.

The previous prime is 51933811. The next prime is 51933851. The reversal of 51933841 is 14833915.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14833915 = 52966783.

It is a cyclic number.

It is not a de Polignac number, because 51933841 - 211 = 51931793 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51933797 and 51933806.

It is not an unprimeable number, because it can be changed into a prime (51933811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242575 + ... + 242788.

It is an arithmetic number, because the mean of its divisors is an integer number (13104828).

Almost surely, 251933841 is an apocalyptic number.

It is an amenable number.

51933841 is a deficient number, since it is larger than the sum of its proper divisors (485471).

51933841 is a wasteful number, since it uses less digits than its factorization.

51933841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485470.

The product of its digits is 12960, while the sum is 34.

The square root of 51933841 is about 7206.5137896212. The cubic root of 51933841 is about 373.0927541396.

The spelling of 51933841 in words is "fifty-one million, nine hundred thirty-three thousand, eight hundred forty-one".

Divisors: 1 107 485363 51933841