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300103143 = 3100034381
BaseRepresentation
bin10001111000110…
…011010111100111
3202220200211010020
4101320303113213
51103311300033
645440130223
710302556164
oct2170632747
9686624106
10300103143
11144444a2a
1284606973
134a235a32
142bbdd06b
151b52e6b3
hex11e335e7

300103143 has 4 divisors (see below), whose sum is σ = 400137528. Its totient is φ = 200068760.

The previous prime is 300103121. The next prime is 300103151. The reversal of 300103143 is 341301003.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 300103143 - 26 = 300103079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (300103943) 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 3 ways as a sum of consecutive naturals, for example, 50017188 + ... + 50017193.

It is an arithmetic number, because the mean of its divisors is an integer number (100034382).

Almost surely, 2300103143 is an apocalyptic number.

300103143 is a deficient number, since it is larger than the sum of its proper divisors (100034385).

300103143 is a wasteful number, since it uses less digits than its factorization.

300103143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100034384.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 300103143 is about 17323.4853017515. The cubic root of 300103143 is about 669.5096605391.

Adding to 300103143 its reverse (341301003), we get a palindrome (641404146).

It can be divided in two parts, 30010 and 3143, that added together give a triangular number (33153 = T257).

The spelling of 300103143 in words is "three hundred million, one hundred three thousand, one hundred forty-three".

Divisors: 1 3 100034381 300103143