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11937973519780 = 2257112704720987
BaseRepresentation
bin1010110110111000011010…
…1010111100010110100100
31120021020222220022102210021
42231232012222330112210
53031042432210113110
641220121311204524
72341330053434140
oct255560652742644
946236886272707
1011937973519780
113892958914200
1214097ab216744
13687991176499
142d3b2dd3a220
1515a8028292da
hexadb86abc5a4

11937973519780 has 72 divisors (see below), whose sum is σ = 31492571511744. Its totient is φ = 3720926806080.

The previous prime is 11937973519741. The next prime is 11937973519799. The reversal of 11937973519780 is 8791537973911.

It is a Harshad number since it is a multiple of its sum of digits (70).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 352343554 + ... + 352377433.

It is an arithmetic number, because the mean of its divisors is an integer number (437396826552).

Almost surely, 211937973519780 is an apocalyptic number.

11937973519780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11937973519780 is an abundant number, since it is smaller than the sum of its proper divisors (19554597991964).

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

11937973519780 is a wasteful number, since it uses less digits than its factorization.

11937973519780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704721025 (or 704721012 counting only the distinct ones).

The product of its (nonzero) digits is 90016920, while the sum is 70.

The spelling of 11937973519780 in words is "eleven trillion, nine hundred thirty-seven billion, nine hundred seventy-three million, five hundred nineteen thousand, seven hundred eighty".

Divisors: 1 2 4 5 7 10 11 14 20 22 28 35 44 55 70 77 110 121 140 154 220 242 308 385 484 605 770 847 1210 1540 1694 2420 3388 4235 8470 16940 704720987 1409441974 2818883948 3523604935 4933046909 7047209870 7751930857 9866093818 14094419740 15503861714 19732187636 24665234545 31007723428 38759654285 49330469090 54263515999 77519308570 85271239427 98660938180 108527031998 155038617140 170542478854 217054063996 271317579995 341084957708 426356197135 542635159990 596898675989 852712394270 1085270319980 1193797351978 1705424788540 2387594703956 2984493379945 5968986759890 11937973519780