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65228075 = 5211221563
BaseRepresentation
bin1111100011010…
…0110100101011
311112201221002122
43320310310223
5113144244300
610250021455
71421300213
oct370646453
9145657078
1065228075
1133901900
1219a1788b
131068a7c3
14893d243
155ad6c85
hex3e34d2b

65228075 has 18 divisors (see below), whose sum is σ = 88908372. Its totient is φ = 47436400.

The previous prime is 65228071. The next prime is 65228081. The reversal of 65228075 is 57082256.

It is not a de Polignac number, because 65228075 - 22 = 65228071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65228071) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7757 + ... + 13806.

It is an arithmetic number, because the mean of its divisors is an integer number (4939354).

Almost surely, 265228075 is an apocalyptic number.

65228075 is a deficient number, since it is larger than the sum of its proper divisors (23680297).

65228075 is a wasteful number, since it uses less digits than its factorization.

65228075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21595 (or 21579 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 65228075 is about 8076.3899732492. The cubic root of 65228075 is about 402.5422971637.

The spelling of 65228075 in words is "sixty-five million, two hundred twenty-eight thousand, seventy-five".

Divisors: 1 5 11 25 55 121 275 605 3025 21563 107815 237193 539075 1185965 2609123 5929825 13045615 65228075