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300220420 = 22515011021
BaseRepresentation
bin10001111001010…
…000000000000100
3202220220202222211
4101321100000010
51103324023140
645442433204
710303555123
oct2171200004
9686822884
10300220420
11144515055
1284662804
134a277226
142bc2daba
151b5542ea
hex11e50004

300220420 has 12 divisors (see below), whose sum is σ = 630462924. Its totient is φ = 120088160.

The previous prime is 300220397. The next prime is 300220421. The reversal of 300220420 is 24022003.

It can be written as a sum of positive squares in 2 ways, for example, as 31719424 + 268500996 = 5632^2 + 16386^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 300220420.

It is not an unprimeable number, because it can be changed into a prime (300220421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7505491 + ... + 7505530.

It is an arithmetic number, because the mean of its divisors is an integer number (52538577).

Almost surely, 2300220420 is an apocalyptic number.

It is an amenable number.

300220420 is an abundant number, since it is smaller than the sum of its proper divisors (330242504).

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

300220420 is a wasteful number, since it uses less digits than its factorization.

300220420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15011030 (or 15011028 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 300220420 is about 17326.8698846618. The cubic root of 300220420 is about 669.5968615126.

Adding to 300220420 its reverse (24022003), we get a palindrome (324242423).

The spelling of 300220420 in words is "three hundred million, two hundred twenty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 15011021 30022042 60044084 75055105 150110210 300220420