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71430944308 = 2281973217849
BaseRepresentation
bin100001010000110011…
…1011011011000110100
320211101010220221102221
41002201213123120310
52132242310204213
652452005012124
75106061002643
oct1024147333064
9224333827387
1071430944308
11283259a6779
1211a160b4044
136974a3bb69
143658aa135a
151cd106938d
hex10a19db634

71430944308 has 12 divisors (see below), whose sum is σ = 125006251300. Its totient is φ = 35714872512.

The previous prime is 71430944297. The next prime is 71430944327. The reversal of 71430944308 is 80344903417.

It can be written as a sum of positive squares in 2 ways, for example, as 15632000784 + 55798943524 = 125028^2 + 236218^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 218968 + ... + 436816.

Almost surely, 271430944308 is an apocalyptic number.

It is an amenable number.

71430944308 is a deficient number, since it is larger than the sum of its proper divisors (53575306992).

71430944308 is a wasteful number, since it uses less digits than its factorization.

71430944308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299826 (or 299824 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 71430944308 in words is "seventy-one billion, four hundred thirty million, nine hundred forty-four thousand, three hundred eight".

Divisors: 1 2 4 81973 163946 217849 327892 435698 871396 17857736077 35715472154 71430944308