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71068006784 = 27555218803
BaseRepresentation
bin100001000101111111…
…0111011100110000000
320210102211222210202102
41002023332323212000
52131021402204114
652352002005532
75064063043025
oct1021376734600
9223384883672
1071068006784
112815a045405
12119346468a8
1369177a6028
1436227c754c
151cae2772de
hex108bfbb980

71068006784 has 16 divisors (see below), whose sum is σ = 141580795020. Its totient is φ = 35534003328.

The previous prime is 71068006783. The next prime is 71068006787. The reversal of 71068006784 is 48760086017.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71068006781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277609274 + ... + 277609529.

Almost surely, 271068006784 is an apocalyptic number.

It is an amenable number.

71068006784 is a deficient number, since it is larger than the sum of its proper divisors (70512788236).

71068006784 is an equidigital number, since it uses as much as digits as its factorization.

71068006784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555218817 (or 555218805 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 47.

The spelling of 71068006784 in words is "seventy-one billion, sixty-eight million, six thousand, seven hundred eighty-four".

Divisors: 1 2 4 8 16 32 64 128 555218803 1110437606 2220875212 4441750424 8883500848 17767001696 35534003392 71068006784