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105112128660 = 223571122751543
BaseRepresentation
bin110000111100100101…
…0111100110010010100
3101001022110000101102020
41201321022330302110
53210232201104120
6120142101413140
710410530231460
oct1417112746224
9331273011366
10105112128660
114063a069020
1218455a0a1b0
139bb196a546
145131d8d4a0
152b02e3e640
hex18792bcc94

105112128660 has 96 divisors (see below), whose sum is σ = 366936901632. Its totient is φ = 21841480320.

The previous prime is 105112128607. The next prime is 105112128679. The reversal of 105112128660 is 66821211501.

It is a super-2 number, since 2×1051121286602 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

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, 11371152 + ... + 11380391.

It is an arithmetic number, because the mean of its divisors is an integer number (3822259392).

Almost surely, 2105112128660 is an apocalyptic number.

105112128660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105112128660 is an abundant number, since it is smaller than the sum of its proper divisors (261824772972).

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

105112128660 is a wasteful number, since it uses less digits than its factorization.

105112128660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22751573 (or 22751571 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 33.

The spelling of 105112128660 in words is "one hundred five billion, one hundred twelve million, one hundred twenty-eight thousand, six hundred sixty".

Divisors: 1 2 3 4 5 6 7 10 11 12 14 15 20 21 22 28 30 33 35 42 44 55 60 66 70 77 84 105 110 132 140 154 165 210 220 231 308 330 385 420 462 660 770 924 1155 1540 2310 4620 22751543 45503086 68254629 91006172 113757715 136509258 159260801 227515430 250266973 273018516 318521602 341273145 455030860 477782403 500533946 637043204 682546290 750800919 796304005 955564806 1001067892 1251334865 1365092580 1501601838 1592608010 1751868811 1911129612 2388912015 2502669730 3003203676 3185216020 3503737622 3754004595 4777824030 5005339460 5255606433 7007475244 7508009190 8759344055 9555648060 10511212866 15016018380 17518688110 21022425732 26278032165 35037376220 52556064330 105112128660