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16853398738680 = 2335725038015809
BaseRepresentation
bin1111010100111111110011…
…0110000101011011111000
32012200011120100001112022110
43311033330312011123320
54202111230034114210
655502202224452320
73356421634425420
oct365177466053370
965604510045273
1016853398738680
115408539247959
121a8237517a0a0
139533653a837a
144239cd133480
151e35e011b420
hexf53fcd856f8

16853398738680 has 128 divisors (see below), whose sum is σ = 57806174131200. Its totient is φ = 3850665910272.

The previous prime is 16853398738667. The next prime is 16853398738697. The reversal of 16853398738680 is 8683789335861.

It is a super-2 number, since 2×168533987386802 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1905385 + ... + 6110424.

It is an arithmetic number, because the mean of its divisors is an integer number (451610735400).

Almost surely, 216853398738680 is an apocalyptic number.

16853398738680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16853398738680 is an abundant number, since it is smaller than the sum of its proper divisors (40952775392520).

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

16853398738680 is a wasteful number, since it uses less digits than its factorization.

16853398738680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8018333 (or 8018329 counting only the distinct ones).

The product of its (nonzero) digits is 1254113280, while the sum is 75.

The spelling of 16853398738680 in words is "sixteen trillion, eight hundred fifty-three billion, three hundred ninety-eight million, seven hundred thirty-eight thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 56 60 70 84 105 120 140 168 210 280 420 840 2503 5006 7509 10012 12515 15018 17521 20024 25030 30036 35042 37545 50060 52563 60072 70084 75090 87605 100120 105126 140168 150180 175210 210252 262815 300360 350420 420504 525630 700840 1051260 2102520 8015809 16031618 24047427 32063236 40079045 48094854 56110663 64126472 80158090 96189708 112221326 120237135 160316180 168331989 192379416 224442652 240474270 280553315 320632360 336663978 448885304 480948540 561106630 673327956 841659945 961897080 1122213260 1346655912 1683319890 2244426520 3366639780 6733279560 20063569927 40127139854 60190709781 80254279708 100317849635 120381419562 140444989489 160508559416 200635699270 240762839124 280889978978 300953548905 401271398540 421334968467 481525678248 561779957956 601907097810 702224947445 802542797080 842669936934 1123559915912 1203814195620 1404449894890 1685339873868 2106674842335 2407628391240 2808899789780 3370679747736 4213349684670 5617799579560 8426699369340 16853398738680