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52730185071728 = 2419173454556157
BaseRepresentation
bin10111111110101001100111…
…11100110011110001110000
320220200221211021001000220102
423333110303330303301300
523402412404334243403
6304051525042331532
714051426066552243
oct1377246374636160
9226627737030812
1052730185071728
111588a82288873a
125ab7568359ba8
132356586c47868
14d0422422125a
15616976bc9b88
hex2ff533f33c70

52730185071728 has 20 divisors (see below), whose sum is σ = 107541824817960. Its totient is φ = 24977456086464.

The previous prime is 52730185071647. The next prime is 52730185071779. The reversal of 52730185071728 is 82717058103725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86727277775 + ... + 86727278382.

It is an arithmetic number, because the mean of its divisors is an integer number (5377091240898).

Almost surely, 252730185071728 is an apocalyptic number.

It is an amenable number.

52730185071728 is an abundant number, since it is smaller than the sum of its proper divisors (54811639746232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52730185071728 is a wasteful number, since it uses less digits than its factorization.

52730185071728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173454556184 (or 173454556178 counting only the distinct ones).

The product of its (nonzero) digits is 6585600, while the sum is 56.

The spelling of 52730185071728 in words is "fifty-two trillion, seven hundred thirty billion, one hundred eighty-five million, seventy-one thousand, seven hundred twenty-eight".

Divisors: 1 2 4 8 16 19 38 76 152 304 173454556157 346909112314 693818224628 1387636449256 2775272898512 3295636566983 6591273133966 13182546267932 26365092535864 52730185071728