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19484958131980 = 22511701601121019
BaseRepresentation
bin1000110111000101100100…
…00000100000011100001100
32112222202002020022201121021
410123202302000200130030
510023220143240210410
6105235133255243524
74050512266254505
oct433426200403414
975882066281537
1019484958131980
116232584991560
1222283950795a4
13ab4567a4b053
144b5111435bac
1523bcad91ceda
hex11b8b202070c

19484958131980 has 96 divisors (see below), whose sum is σ = 44711509489920. Its totient is φ = 7073818080000.

The previous prime is 19484958131959. The next prime is 19484958131993. The reversal of 19484958131980 is 8913185948491.

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, 927005911 + ... + 927026929.

It is an arithmetic number, because the mean of its divisors is an integer number (465744890520).

Almost surely, 219484958131980 is an apocalyptic number.

19484958131980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19484958131980 is an abundant number, since it is smaller than the sum of its proper divisors (25226551357940).

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

19484958131980 is a wasteful number, since it uses less digits than its factorization.

19484958131980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27751 (or 27749 counting only the distinct ones).

The product of its (nonzero) digits is 89579520, while the sum is 70.

The spelling of 19484958131980 in words is "nineteen trillion, four hundred eighty-four billion, nine hundred fifty-eight million, one hundred thirty-one thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 701 1402 2804 3505 6011 7010 7711 12022 14020 15422 21019 24044 30055 30844 38555 42038 60110 66121 77110 84076 105095 120220 132242 154220 210190 231209 264484 330605 420380 462418 661210 924836 1156045 1322420 2312090 4213711 4624180 8427422 14734319 16854844 21068555 29468638 42137110 46350821 58937276 73671595 84274220 92701642 126345209 147343190 162077509 185403284 231754105 252690418 294686380 324155018 463508210 505380836 631726045 648310036 810387545 927016420 1263452090 1389797299 1620775090 2526904180 2779594598 3241550180 5559189196 6948986495 13897972990 27795945980 88567991509 177135983018 354271966036 442839957545 885679915090 974247906599 1771359830180 1948495813198 3896991626396 4871239532995 9742479065990 19484958131980