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202112065 = 5172377789
BaseRepresentation
bin11000000101111…
…11110001000001
3112002022100122001
430002333301001
5403220041230
632015544001
75002632001
oct1402776101
9462270561
10202112065
11a40a5871
125782b001
1332b4674c
141cbb2001
1512b250ca
hexc0bfc41

202112065 has 8 divisors (see below), whose sum is σ = 256801320. Its totient is φ = 152178432.

The previous prime is 202112039. The next prime is 202112069. The reversal of 202112065 is 560211202.

It can be written as a sum of positive squares in 4 ways, for example, as 115863696 + 86248369 = 10764^2 + 9287^2 .

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 202112065 - 211 = 202110017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202112069) 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 7 ways as a sum of consecutive naturals, for example, 1188810 + ... + 1188979.

It is an arithmetic number, because the mean of its divisors is an integer number (32100165).

Almost surely, 2202112065 is an apocalyptic number.

It is an amenable number.

202112065 is a deficient number, since it is larger than the sum of its proper divisors (54689255).

202112065 is a wasteful number, since it uses less digits than its factorization.

202112065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2377811.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 202112065 is about 14216.6122898530. The cubic root of 202112065 is about 586.8549153046.

Adding to 202112065 its reverse (560211202), we get a palindrome (762323267).

The spelling of 202112065 in words is "two hundred two million, one hundred twelve thousand, sixty-five".

Divisors: 1 5 17 85 2377789 11888945 40422413 202112065