Search a number
-
+
300220989 = 310928423
BaseRepresentation
bin10001111001010…
…000001000111101
3202220220210202220
4101321100020331
51103324032424
645442435553
710303556565
oct2171201075
9686823686
10300220989
11144515522
1284662bb9
134a277573
142bc2dda5
151b554579
hex11e5023d

300220989 has 12 divisors (see below), whose sum is σ = 404048736. Its totient is φ = 198287568.

The previous prime is 300220981. The next prime is 300220993. The reversal of 300220989 is 989022003.

It is not a de Polignac number, because 300220989 - 23 = 300220981 is a prime.

It is a super-2 number, since 2×3002209892 = 180265284472276242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (300220981) 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 11 ways as a sum of consecutive naturals, for example, 31432 + ... + 39854.

It is an arithmetic number, because the mean of its divisors is an integer number (33670728).

Almost surely, 2300220989 is an apocalyptic number.

It is an amenable number.

300220989 is a deficient number, since it is larger than the sum of its proper divisors (103827747).

300220989 is an equidigital number, since it uses as much as digits as its factorization.

300220989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8644 (or 8535 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 300220989 is about 17326.8863042383. The cubic root of 300220989 is about 669.5972845355.

The spelling of 300220989 in words is "three hundred million, two hundred twenty thousand, nine hundred eighty-nine".

Divisors: 1 3 109 327 8423 11881 25269 35643 918107 2754321 100073663 300220989