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2660201 = 3797019
BaseRepresentation
bin1010001001011101101001
312000011002222
422021131221
51140111301
6133003425
731416455
oct12113551
95004088
102660201
111557715
12a83575
13721aab
144d3665
1537831b
hex289769

2660201 has 4 divisors (see below), whose sum is σ = 2667600. Its totient is φ = 2652804.

The previous prime is 2660183. The next prime is 2660219. The reversal of 2660201 is 1020662.

2660201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1020662 = 2510331.

It is an interprime number because it is at equal distance from previous prime (2660183) and next prime (2660219).

It is a cyclic number.

It is not a de Polignac number, because 2660201 - 26 = 2660137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2660201.

It is not an unprimeable number, because it can be changed into a prime (2660291) by changing a digit.

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, 3131 + ... + 3888.

It is an arithmetic number, because the mean of its divisors is an integer number (666900).

22660201 is an apocalyptic number.

It is an amenable number.

2660201 is a deficient number, since it is larger than the sum of its proper divisors (7399).

2660201 is an equidigital number, since it uses as much as digits as its factorization.

2660201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7398.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2660201 is about 1631.0122623696. The cubic root of 2660201 is about 138.5600880951.

Adding to 2660201 its reverse (1020662), we get a palindrome (3680863).

The spelling of 2660201 in words is "two million, six hundred sixty thousand, two hundred one".

Divisors: 1 379 7019 2660201