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27848679789920 = 2551115823113517
BaseRepresentation
bin1100101010100000001101…
…01010101001010101100000
310122121022022101011202212212
412111100012222221111200
512122233044011234140
6135121301252541252
75603000150333663
oct625200652512540
9118538271152785
1027848679789920
118967616800810
123159316621828
131270171c65842
146c3c51a876da
1533461c388765
hex195406aa9560

27848679789920 has 48 divisors (see below), whose sum is σ = 71773642917648. Its totient is φ = 10126792650240.

The previous prime is 27848679789899. The next prime is 27848679789937. The reversal of 27848679789920 is 2998797684872.

It is a congruent number.

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, 7911554999 + ... + 7911558518.

It is an arithmetic number, because the mean of its divisors is an integer number (1495284227451).

Almost surely, 227848679789920 is an apocalyptic number.

27848679789920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27848679789920 is an abundant number, since it is smaller than the sum of its proper divisors (43924963127728).

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

27848679789920 is a wasteful number, since it uses less digits than its factorization.

27848679789920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15823113543 (or 15823113535 counting only the distinct ones).

The product of its (nonzero) digits is 12290310144, while the sum is 86.

The spelling of 27848679789920 in words is "twenty-seven trillion, eight hundred forty-eight billion, six hundred seventy-nine million, seven hundred eighty-nine thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 80 88 110 160 176 220 352 440 880 1760 15823113517 31646227034 63292454068 79115567585 126584908136 158231135170 174054248687 253169816272 316462270340 348108497374 506339632544 632924540680 696216994748 870271243435 1265849081360 1392433989496 1740542486870 2531698162720 2784867978992 3481084973740 5569735957984 6962169947480 13924339894960 27848679789920