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210211112011100 = 225223471944598631
BaseRepresentation
bin101111110010111110010110…
…101010001100010101011100
31000120021222121211100122110212
4233302332112222030111130
5210023044324133323400
62023025352433351552
762164152214321004
oct5762762652142534
91016258554318425
10210211112011100
1160a860395a0a12
121b6b03a41085b8
13903aa9091b765
1439ca3b4941004
151948117c6e335
hexbf2f96a8c55c

210211112011100 has 72 divisors (see below), whose sum is σ = 486118544421888. Its totient is φ = 78717352542400.

The previous prime is 210211112011063. The next prime is 210211112011127. The reversal of 210211112011100 is 1110211112012.

It is a super-2 number, since 2×2102111120111002 (a number of 29 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 23 ways as a sum of consecutive naturals, for example, 972191216 + ... + 972407415.

It is an arithmetic number, because the mean of its divisors is an integer number (6751646450304).

Almost surely, 2210211112011100 is an apocalyptic number.

210211112011100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210211112011100 is an abundant number, since it is smaller than the sum of its proper divisors (275907432410788).

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

210211112011100 is a wasteful number, since it uses less digits than its factorization.

210211112011100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1944598715 (or 1944598708 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 210211112011100 its reverse (1110211112012), we get a palindrome (211321323123112).

The spelling of 210211112011100 in words is "two hundred ten trillion, two hundred eleven billion, one hundred twelve million, eleven thousand, one hundred".

Divisors: 1 2 4 5 10 20 23 25 46 47 50 92 94 100 115 188 230 235 460 470 575 940 1081 1150 1175 2162 2300 2350 4324 4700 5405 10810 21620 27025 54050 108100 1944598631 3889197262 7778394524 9722993155 19445986310 38891972620 44725768513 48614965775 89451537026 91396135657 97229931550 178903074052 182792271314 194459863100 223628842565 365584542628 447257685130 456980678285 894515370260 913961356570 1118144212825 1827922713140 2102111120111 2236288425650 2284903391425 4204222240222 4472576851300 4569806782850 8408444480444 9139613565700 10510555600555 21021111201110 42042222402220 52552778002775 105105556005550 210211112011100