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71307060068 = 2217826765017
BaseRepresentation
bin100001001101000111…
…0110110001101100100
320211001111210222012202
41002122032312031210
52132014101410233
652431421434032
75103025003256
oct1023216661544
9224044728182
1071307060068
1128271a81702
12119a070b918
136955184c8a
143646453cd6
151cc5247be8
hex109a3b6364

71307060068 has 6 divisors (see below), whose sum is σ = 124787355126. Its totient is φ = 35653530032.

The previous prime is 71307060061. The next prime is 71307060109. The reversal of 71307060068 is 86006070317.

It can be written as a sum of positive squares in only one way, i.e., 63010036324 + 8297023744 = 251018^2 + 91088^2 .

It is not an unprimeable number, because it can be changed into a prime (71307060061) 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 as a sum of consecutive naturals, namely, 8913382505 + ... + 8913382512.

It is an arithmetic number, because the mean of its divisors is an integer number (20797892521).

Almost surely, 271307060068 is an apocalyptic number.

It is an amenable number.

71307060068 is a deficient number, since it is larger than the sum of its proper divisors (53480295058).

71307060068 is a wasteful number, since it uses less digits than its factorization.

71307060068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17826765021 (or 17826765019 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The spelling of 71307060068 in words is "seventy-one billion, three hundred seven million, sixty thousand, sixty-eight".

Divisors: 1 2 4 17826765017 35653530034 71307060068