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7143868812 = 2234313844707
BaseRepresentation
bin1101010011100111…
…01100100110001100
3200102212110010200210
412221303230212030
5104112312300222
63140513522420
7342013611603
oct65163544614
920385403623
107143868812
113036589413
121474573410
1389b069212
144baacaa3a
152bc286d0c
hex1a9cec98c

7143868812 has 24 divisors (see below), whose sum is σ = 17056680256. Its totient is φ = 2325910608.

The previous prime is 7143868789. The next prime is 7143868813. The reversal of 7143868812 is 2188683417.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (7143868813) 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, 6921838 + ... + 6922869.

Almost surely, 27143868812 is an apocalyptic number.

It is an amenable number.

7143868812 is an abundant number, since it is smaller than the sum of its proper divisors (9912811444).

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

7143868812 is a wasteful number, since it uses less digits than its factorization.

7143868812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13844757 (or 13844755 counting only the distinct ones).

The product of its digits is 516096, while the sum is 48.

The square root of 7143868812 is about 84521.4103763064. The cubic root of 7143868812 is about 1925.9477033232.

The spelling of 7143868812 in words is "seven billion, one hundred forty-three million, eight hundred sixty-eight thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 12 43 86 129 172 258 516 13844707 27689414 41534121 55378828 83068242 166136484 595322401 1190644802 1785967203 2381289604 3571934406 7143868812