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57974389928 = 23713530315017
BaseRepresentation
bin110101111111100010…
…101111110010101000
312112122100001011002222
4311333202233302220
51422212420434203
642344424213212
74121442116660
oct657742576250
9175570034088
1057974389928
1122650039254
12b29b60a208
13560bbb7050
142b3d84d1a0
1517949d2038
hexd7f8afca8

57974389928 has 64 divisors (see below), whose sum is σ = 133821192960. Its totient is φ = 22929071616.

The previous prime is 57974389919. The next prime is 57974389937. The reversal of 57974389928 is 82998347975.

It is an interprime number because it is at equal distance from previous prime (57974389919) and next prime (57974389937).

It is a super-2 number, since 2×579743899282 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3853076 + ... + 3868092.

It is an arithmetic number, because the mean of its divisors is an integer number (2090956140).

Almost surely, 257974389928 is an apocalyptic number.

It is an amenable number.

57974389928 is an abundant number, since it is smaller than the sum of its proper divisors (75846803032).

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

57974389928 is a wasteful number, since it uses less digits than its factorization.

57974389928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20346 (or 20342 counting only the distinct ones).

The product of its digits is 274337280, while the sum is 71.

The spelling of 57974389928 in words is "fifty-seven billion, nine hundred seventy-four million, three hundred eighty-nine thousand, nine hundred twenty-eight".

Divisors: 1 2 4 7 8 13 14 26 28 52 56 91 104 182 364 728 5303 10606 15017 21212 30034 37121 42424 60068 68939 74242 105119 120136 137878 148484 195221 210238 275756 296968 390442 420476 482573 551512 780884 840952 965146 1366547 1561768 1930292 2733094 3860584 5466188 10932376 79635151 159270302 318540604 557446057 637081208 1035256963 1114892114 2070513926 2229784228 4141027852 4459568456 7246798741 8282055704 14493597482 28987194964 57974389928