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71839098964 = 2243141670011
BaseRepresentation
bin100001011100111110…
…0011010100001010100
320212102120221100101001
41002321330122201110
52134111302131324
653000305113044
75122145160133
oct1027174324124
9225376840331
1071839098964
1128515331376
1211b0a928784
136a0b4770a9
143696d8991a
151d06cdde44
hex10b9f1a854

71839098964 has 12 divisors (see below), whose sum is σ = 126010116288. Its totient is φ = 35836208600.

The previous prime is 71839098923. The next prime is 71839098977. The reversal of 71839098964 is 46989093817.

It is a super-2 number, since 2×718390989642 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71839098896 and 71839098905.

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, 20833282 + ... + 20836729.

It is an arithmetic number, because the mean of its divisors is an integer number (10500843024).

Almost surely, 271839098964 is an apocalyptic number.

It is an amenable number.

71839098964 is a deficient number, since it is larger than the sum of its proper divisors (54171017324).

71839098964 is a wasteful number, since it uses less digits than its factorization.

71839098964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41670446 (or 41670444 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 64.

The spelling of 71839098964 in words is "seventy-one billion, eight hundred thirty-nine million, ninety-eight thousand, nine hundred sixty-four".

Divisors: 1 2 4 431 862 1724 41670011 83340022 166680044 17959774741 35919549482 71839098964