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52051811 = 719391367
BaseRepresentation
bin1100011010001…
…1111101100011
310121221111122212
43012203331203
5101311124221
65055352335
71201301360
oct306437543
9117844585
1052051811
1127422329
12155226ab
13aa262b6
146cad467
154882b5b
hex31a3f63

52051811 has 8 divisors (see below), whose sum is σ = 62618880. Its totient is φ = 42267528.

The previous prime is 52051763. The next prime is 52051871. The reversal of 52051811 is 11815025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52051811 - 222 = 47857507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52051871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195551 + ... + 195816.

It is an arithmetic number, because the mean of its divisors is an integer number (7827360).

Almost surely, 252051811 is an apocalyptic number.

52051811 is a deficient number, since it is larger than the sum of its proper divisors (10567069).

52051811 is a wasteful number, since it uses less digits than its factorization.

52051811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391393.

The product of its (nonzero) digits is 400, while the sum is 23.

The square root of 52051811 is about 7214.6941030095. The cubic root of 52051811 is about 373.3750393636.

Adding to 52051811 its reverse (11815025), we get a palindrome (63866836).

The spelling of 52051811 in words is "fifty-two million, fifty-one thousand, eight hundred eleven".

Divisors: 1 7 19 133 391367 2739569 7435973 52051811