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6828449143 = 173112957209
BaseRepresentation
bin1100101110000000…
…11101110101110111
3122121212221011020211
412113000131311313
5102441040333033
63045325210251
7331133600665
oct62700356567
918555834224
106828449143
1129945329aa
1213a6a00987
1384a8cca69
1448ac61c35
1529e72e2cd
hex19701dd77

6828449143 has 8 divisors (see below), whose sum is σ = 7463352960. Its totient is φ = 6219459840.

The previous prime is 6828449119. The next prime is 6828449183. The reversal of 6828449143 is 3419448286.

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 6828449143 - 29 = 6828448631 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 (6828449113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6478078 + ... + 6479131.

It is an arithmetic number, because the mean of its divisors is an integer number (932919120).

Almost surely, 26828449143 is an apocalyptic number.

6828449143 is a deficient number, since it is larger than the sum of its proper divisors (634903817).

6828449143 is a wasteful number, since it uses less digits than its factorization.

6828449143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12957257.

The product of its digits is 1327104, while the sum is 49.

The square root of 6828449143 is about 82634.4307356201. The cubic root of 6828449143 is about 1897.1748542282.

The spelling of 6828449143 in words is "six billion, eight hundred twenty-eight million, four hundred forty-nine thousand, one hundred forty-three".

Divisors: 1 17 31 527 12957209 220272553 401673479 6828449143