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71827388413 = 11232935327733
BaseRepresentation
bin100001011100100111…
…1101111011111111101
320212101202220101111221
41002321033233133331
52134100302412123
652555210113341
75121643504444
oct1027117573775
9225352811457
1071827388413
1128509763030
1211b06a1b851
136a08c06a81
1436955bbd5b
151d05c7925d
hex10b93ef7fd

71827388413 has 32 divisors (see below), whose sum is σ = 84826103040. Its totient is φ = 60131850240.

The previous prime is 71827388411. The next prime is 71827388497. The reversal of 71827388413 is 31488372817.

It is not a de Polignac number, because 71827388413 - 21 = 71827388411 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 (71827388411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2576095 + ... + 2603827.

It is an arithmetic number, because the mean of its divisors is an integer number (2650815720).

Almost surely, 271827388413 is an apocalyptic number.

It is an amenable number.

71827388413 is a deficient number, since it is larger than the sum of its proper divisors (12998714627).

71827388413 is a wasteful number, since it uses less digits than its factorization.

71827388413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28149.

The product of its digits is 1806336, while the sum is 52.

The spelling of 71827388413 in words is "seventy-one billion, eight hundred twenty-seven million, three hundred eighty-eight thousand, four hundred thirteen".

Divisors: 1 11 23 29 253 319 353 667 3883 7337 8119 10237 27733 89309 112607 235451 305063 637859 804257 2589961 7016449 8846827 9789749 18497911 107687239 203477021 225164227 283902721 2476806497 3122929931 6529762583 71827388413