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682020305 = 5314400131
BaseRepresentation
bin101000101001101…
…100110111010001
31202112100012222022
4220221230313101
52344044122210
6151402021225
722621035251
oct5051546721
91675305868
10682020305
1131aa89a4a
121704a7815
13ab3b5715
1466817961
153ed20155
hex28a6cdd1

682020305 has 8 divisors (see below), whose sum is σ = 844825344. Its totient is φ = 528015600.

The previous prime is 682020293. The next prime is 682020307. The reversal of 682020305 is 503020286.

682020305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 682020305 - 28 = 682020049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (682020307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2199911 + ... + 2200220.

It is an arithmetic number, because the mean of its divisors is an integer number (105603168).

Almost surely, 2682020305 is an apocalyptic number.

It is an amenable number.

682020305 is a deficient number, since it is larger than the sum of its proper divisors (162805039).

682020305 is a wasteful number, since it uses less digits than its factorization.

682020305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4400167.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 682020305 is about 26115.5184708250. The cubic root of 682020305 is about 880.2359495576.

The spelling of 682020305 in words is "six hundred eighty-two million, twenty thousand, three hundred five".

Divisors: 1 5 31 155 4400131 22000655 136404061 682020305