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71063968933 = 3747112336389
BaseRepresentation
bin100001000101110111…
…1100001110010100101
320210102120101122212101
41002023233201302211
52131014334001213
652351335252101
75064013524616
oct1021357416245
9223376348771
1071063968933
1128157837741
121193321a031
1369169c1179
143622055c0d
151cadc2abdd
hex108bbe1ca5

71063968933 has 16 divisors (see below), whose sum is σ = 74605904640. Its totient is φ = 67610068416.

The previous prime is 71063968931. The next prime is 71063969023. The reversal of 71063968933 is 33986936017.

It is a cyclic number.

It is not a de Polignac number, because 71063968933 - 21 = 71063968931 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71063968931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1934703 + ... + 1971091.

It is an arithmetic number, because the mean of its divisors is an integer number (4662869040).

Almost surely, 271063968933 is an apocalyptic number.

It is an amenable number.

71063968933 is a deficient number, since it is larger than the sum of its proper divisors (3541935707).

71063968933 is a wasteful number, since it uses less digits than its factorization.

71063968933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37596.

The product of its (nonzero) digits is 4408992, while the sum is 55.

The spelling of 71063968933 in words is "seventy-one billion, sixty-three million, nine hundred sixty-eight thousand, nine hundred thirty-three".

Divisors: 1 37 47 1123 1739 36389 41551 52781 1346393 1710283 1952897 40864847 63280471 1511999339 1920647809 71063968933