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300023145 = 3256667181
BaseRepresentation
bin10001111000011…
…111110101101001
3202220112202101100
4101320133311221
51103301220040
645434312013
710302104022
oct2170376551
9686482340
10300023145
1114439a914
1284588609
134a2084b6
142bbbbc49
151b515b30
hex11e1fd69

300023145 has 12 divisors (see below), whose sum is σ = 520040196. Its totient is φ = 160012320.

The previous prime is 300023107. The next prime is 300023189. The reversal of 300023145 is 541320003.

It can be written as a sum of positive squares in 2 ways, for example, as 174874176 + 125148969 = 13224^2 + 11187^2 .

It is not a de Polignac number, because 300023145 - 215 = 299990377 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3333546 + ... + 3333635.

It is an arithmetic number, because the mean of its divisors is an integer number (43336683).

Almost surely, 2300023145 is an apocalyptic number.

It is an amenable number.

300023145 is a deficient number, since it is larger than the sum of its proper divisors (220017051).

300023145 is a wasteful number, since it uses less digits than its factorization.

300023145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6667192 (or 6667189 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 300023145 is about 17321.1762014016. The cubic root of 300023145 is about 669.4501652235.

Adding to 300023145 its reverse (541320003), we get a palindrome (841343148).

The spelling of 300023145 in words is "three hundred million, twenty-three thousand, one hundred forty-five".

Divisors: 1 3 5 9 15 45 6667181 20001543 33335905 60004629 100007715 300023145