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300020143 = 6126318701
BaseRepresentation
bin10001111000011…
…111000110101111
3202220112121021011
4101320133012233
51103301121033
645434250051
710302062203
oct2170370657
9686477234
10300020143
11144398635
1284586927
134a207017
142bbbab03
151b514ccd
hex11e1f1af

300020143 has 8 divisors (see below), whose sum is σ = 306114336. Its totient is φ = 293964000.

The previous prime is 300020113. The next prime is 300020153. The reversal of 300020143 is 341020003.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 300020143 - 25 = 300020111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (300020113) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6693 + ... + 25393.

It is an arithmetic number, because the mean of its divisors is an integer number (38264292).

Almost surely, 2300020143 is an apocalyptic number.

300020143 is a deficient number, since it is larger than the sum of its proper divisors (6094193).

300020143 is a wasteful number, since it uses less digits than its factorization.

300020143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19025.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 300020143 is about 17321.0895442521. The cubic root of 300020143 is about 669.4479324001.

Adding to 300020143 its reverse (341020003), we get a palindrome (641040146).

The spelling of 300020143 in words is "three hundred million, twenty thousand, one hundred forty-three".

Divisors: 1 61 263 16043 18701 1140761 4918363 300020143