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300042018 = 23241406561
BaseRepresentation
bin10001111000100…
…100011100100010
3202220120201021100
4101320210130202
51103302321033
645434535230
710302213033
oct2170443442
9686521240
10300042018
11144403011
1284597516
134a213c73
142bbc4a8a
151b51b513
hex11e24722

300042018 has 24 divisors (see below), whose sum is σ = 665948556. Its totient is φ = 97574400.

The previous prime is 300041999. The next prime is 300042019. The reversal of 300042018 is 810240003.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 229431609 + 70610409 = 15147^2 + 8403^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (300042019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 202543 + ... + 204018.

Almost surely, 2300042018 is an apocalyptic number.

300042018 is an abundant number, since it is smaller than the sum of its proper divisors (365906538).

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

300042018 is a wasteful number, since it uses less digits than its factorization.

300042018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406610 (or 406607 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 300042018 is about 17321.7209884007. The cubic root of 300042018 is about 669.4642022162.

The spelling of 300042018 in words is "three hundred million, forty-two thousand, eighteen".

Divisors: 1 2 3 6 9 18 41 82 123 246 369 738 406561 813122 1219683 2439366 3659049 7318098 16669001 33338002 50007003 100014006 150021009 300042018