Base | Representation |
---|---|
bin | 1000111110111… |
… | …00100010001001 |
3 | 12020210021210021 |
4 | 10133130202021 |
5 | 123242232301 |
6 | 11251020441 |
7 | 1603324501 |
oct | 437344211 |
9 | 166707707 |
10 | 75352201 |
11 | 39597251 |
12 | 2129a721 |
13 | 127c3a02 |
14 | a016a01 |
15 | 69368a1 |
hex | 47dc889 |
75352201 has 4 divisors (see below), whose sum is σ = 75444804. Its totient is φ = 75259600.
The previous prime is 75352187. The next prime is 75352217. The reversal of 75352201 is 10225357.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 21344400 + 54007801 = 4620^2 + 7349^2 .
It is a cyclic number.
It is not a de Polignac number, because 75352201 - 25 = 75352169 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (75352261) 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 3 ways as a sum of consecutive naturals, for example, 45070 + ... + 46711.
It is an arithmetic number, because the mean of its divisors is an integer number (18861201).
Almost surely, 275352201 is an apocalyptic number.
It is an amenable number.
75352201 is a deficient number, since it is larger than the sum of its proper divisors (92603).
75352201 is an equidigital number, since it uses as much as digits as its factorization.
75352201 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 92602.
The product of its (nonzero) digits is 2100, while the sum is 25.
The square root of 75352201 is about 8680.5645553731. The cubic root of 75352201 is about 422.3754305212.
Adding to 75352201 its reverse (10225357), we get a palindrome (85577558).
The spelling of 75352201 in words is "seventy-five million, three hundred fifty-two thousand, two hundred one".
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