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27068324720 = 245893801731
BaseRepresentation
bin11001001101011001…
…011101101101110000
32120212102211100221012
4121031121131231300
5420413442342340
620233544050052
71645530651413
oct311531355560
976772740835
1027068324720
11105303aaaa8
1252b5163928
132724bb39b8
14144ad49b7a
15a8657e565
hex64d65db70

27068324720 has 40 divisors (see below), whose sum is σ = 63640993680. Its totient is φ = 10705671680.

The previous prime is 27068324719. The next prime is 27068324743. The reversal of 27068324720 is 2742386072.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

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, 1893746 + ... + 1907985.

It is an arithmetic number, because the mean of its divisors is an integer number (1591024842).

Almost surely, 227068324720 is an apocalyptic number.

27068324720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27068324720 is an abundant number, since it is smaller than the sum of its proper divisors (36572668960).

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

27068324720 is a wasteful number, since it uses less digits than its factorization.

27068324720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3801833 (or 3801827 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 41.

The spelling of 27068324720 in words is "twenty-seven billion, sixty-eight million, three hundred twenty-four thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 89 178 356 445 712 890 1424 1780 3560 7120 3801731 7603462 15206924 19008655 30413848 38017310 60827696 76034620 152069240 304138480 338354059 676708118 1353416236 1691770295 2706832472 3383540590 5413664944 6767081180 13534162360 27068324720