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31712140571312 = 2434731033184057
BaseRepresentation
bin1110011010111100011101…
…10111111011001010110000
311011021122120121020111122102
413031132032313323022300
513124032430441240222
6151240204541355532
76452061256205345
oct715361667731260
9134248517214572
1031712140571312
11a117052689553
123682037868ba8
131490599186916
147b8c392687cc
1539ed8b383d92
hex1cd78edfb2b0

31712140571312 has 40 divisors (see below), whose sum is σ = 61621659825936. Its totient is φ = 15809780192256.

The previous prime is 31712140571297. The next prime is 31712140571329. The reversal of 31712140571312 is 21317504121713.

It is a super-2 number, since 2×317121405713122 (a number of 28 digits) contains 22 as substring.

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, 172203188 + ... + 172387244.

Almost surely, 231712140571312 is an apocalyptic number.

It is an amenable number.

31712140571312 is a deficient number, since it is larger than the sum of its proper divisors (29909519254624).

31712140571312 is a wasteful number, since it uses less digits than its factorization.

31712140571312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215445 (or 215439 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 38.

The spelling of 31712140571312 in words is "thirty-one trillion, seven hundred twelve billion, one hundred forty million, five hundred seventy-one thousand, three hundred twelve".

Divisors: 1 2 4 8 16 347 694 1388 2776 5552 31033 62066 124132 184057 248264 368114 496528 736228 1472456 2944912 10768451 21536902 43073804 63867779 86147608 127735558 172295216 255471116 510942232 1021884464 5711840881 11423681762 22847363524 45694727048 91389454096 1982008785707 3964017571414 7928035142828 15856070285656 31712140571312