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3001220 = 225150061
BaseRepresentation
bin1011011100101110000100
312122110220022
423130232010
51232014340
6144154312
734336625
oct13345604
95573808
103001220
11176a952
121008998
13811091
14581a4c
153e43b5
hex2dcb84

3001220 has 12 divisors (see below), whose sum is σ = 6302604. Its totient is φ = 1200480.

The previous prime is 3001217. The next prime is 3001223. The reversal of 3001220 is 221003.

3001220 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3001217) and next prime (3001223).

It can be written as a sum of positive squares in 2 ways, for example, as 1915456 + 1085764 = 1384^2 + 1042^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3001198 and 3001207.

It is not an unprimeable number, because it can be changed into a prime (3001223) 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, 75011 + ... + 75050.

It is an arithmetic number, because the mean of its divisors is an integer number (525217).

Almost surely, 23001220 is an apocalyptic number.

It is an amenable number.

3001220 is an abundant number, since it is smaller than the sum of its proper divisors (3301384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3001220 is a wasteful number, since it uses less digits than its factorization.

3001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150070 (or 150068 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 3001220 is about 1732.4029554350. The cubic root of 3001220 is about 144.2445048753.

Adding to 3001220 its reverse (221003), we get a palindrome (3222223).

The spelling of 3001220 in words is "three million, one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 150061 300122 600244 750305 1500610 3001220