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52068818 = 2113230393
BaseRepresentation
bin1100011010100…
…0000111010010
310121222100222202
43012220013102
5101312200233
65100003202
71201402064
oct306500722
9117870882
1052068818
112743408a
1215530502
13aa30c69
146cb5734
154887be8
hex31a81d2

52068818 has 8 divisors (see below), whose sum is σ = 78794748. Its totient is φ = 25803904.

The previous prime is 52068791. The next prime is 52068823. The reversal of 52068818 is 81886025.

It can be written as a sum of positive squares in 2 ways, for example, as 37908649 + 14160169 = 6157^2 + 3763^2 .

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

It is a super-2 number, since 2×520688182 = 5422323615834248, which contains 22 as substring.

It is an unprimeable number.

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, 114971 + ... + 115422.

Almost surely, 252068818 is an apocalyptic number.

52068818 is a deficient number, since it is larger than the sum of its proper divisors (26725930).

52068818 is a wasteful number, since it uses less digits than its factorization.

52068818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230508.

The product of its (nonzero) digits is 30720, while the sum is 38.

The square root of 52068818 is about 7215.8726430003. The cubic root of 52068818 is about 373.4156994784.

The spelling of 52068818 in words is "fifty-two million, sixty-eight thousand, eight hundred eighteen".

Divisors: 1 2 113 226 230393 460786 26034409 52068818