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18671268008810 = 2529379201784223
BaseRepresentation
bin1000011111011001111100…
…10011000001001101101010
32110002221210202210200010202
410033230332103001031222
54421402224102240220
6103413243452112202
73634645266321104
oct417547623011552
973087722720122
1018671268008810
115a4949303968a
122116749a65662
13a5590173b0a1
144879a0c1c574
15225a38808275
hex10fb3e4c136a

18671268008810 has 64 divisors (see below), whose sum is σ = 34876619366400. Its totient is φ = 7188295145472.

The previous prime is 18671268008717. The next prime is 18671268008831. The reversal of 18671268008810 is 1880086217681.

It is a super-2 number, since 2×186712680088102 (a number of 27 digits) contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 221646359 + ... + 221730581.

It is an arithmetic number, because the mean of its divisors is an integer number (544947177600).

Almost surely, 218671268008810 is an apocalyptic number.

18671268008810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18671268008810 is a deficient number, since it is larger than the sum of its proper divisors (16205351357590).

18671268008810 is a wasteful number, since it uses less digits than its factorization.

18671268008810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86655.

The product of its (nonzero) digits is 2064384, while the sum is 56.

The spelling of 18671268008810 in words is "eighteen trillion, six hundred seventy-one billion, two hundred sixty-eight million, eight thousand, eight hundred ten".

Divisors: 1 2 5 10 29 58 145 290 379 758 1895 2017 3790 4034 10085 10991 20170 21982 54955 58493 84223 109910 116986 168446 292465 421115 584930 764443 842230 1528886 2442467 3822215 4884934 7644430 12212335 22168847 24424670 31920517 44337694 63841034 110844235 159602585 169877791 221688470 319205170 339755582 849388955 925694993 1698777910 1851389986 4628474965 4926455939 9256949930 9852911878 24632279695 49264559390 64383682789 128767365578 321918413945 643836827890 1867126800881 3734253601762 9335634004405 18671268008810