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71054868 = 2235921239
BaseRepresentation
bin1000011110000…
…11011000010100
311221200221221210
410033003120110
5121142223433
611014541420
71521646023
oct417033024
9157627853
1071054868
1137121635
121b967870
131194aa01
1496188ba
156388463
hex43c3614

71054868 has 12 divisors (see below), whose sum is σ = 165794720. Its totient is φ = 23684952.

The previous prime is 71054861. The next prime is 71054869. The reversal of 71054868 is 86845017.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71054861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2960608 + ... + 2960631.

Almost surely, 271054868 is an apocalyptic number.

It is an amenable number.

71054868 is an abundant number, since it is smaller than the sum of its proper divisors (94739852).

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

71054868 is a wasteful number, since it uses less digits than its factorization.

71054868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5921246 (or 5921244 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 71054868 is about 8429.4049612057. The cubic root of 71054868 is about 414.1884133873.

The spelling of 71054868 in words is "seventy-one million, fifty-four thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 5921239 11842478 17763717 23684956 35527434 71054868