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71055261388 = 221091609101287
BaseRepresentation
bin100001000101100111…
…0010011111011001100
320210101222000021100201
41002023032103323030
52131010121331023
652350424503244
75063546520316
oct1021316237314
9223358007321
1071055261388
112815292a621
121193031ab24
136914c62987
143620c2a7b6
151cad0aabad
hex108b393ecc

71055261388 has 24 divisors (see below), whose sum is σ = 125566733600. Its totient is φ = 35179463808.

The previous prime is 71055261373. The next prime is 71055261449. The reversal of 71055261388 is 88316255017.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 650881 + ... + 752167.

Almost surely, 271055261388 is an apocalyptic number.

It is an amenable number.

71055261388 is a deficient number, since it is larger than the sum of its proper divisors (54511472212).

71055261388 is a wasteful number, since it uses less digits than its factorization.

71055261388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103009 (or 103007 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 46.

The spelling of 71055261388 in words is "seventy-one billion, fifty-five million, two hundred sixty-one thousand, three hundred eighty-eight".

Divisors: 1 2 4 109 218 436 1609 3218 6436 101287 175381 202574 350762 405148 701524 11040283 22080566 44161132 162970783 325941566 651883132 17763815347 35527630694 71055261388