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23128684600 = 2352731532919
BaseRepresentation
bin10101100010100100…
…111011100000111000
32012200212200220200011
4111202210323200320
5334331420401400
614343011551304
71446102401230
oct254244734070
965625626604
1023128684600
1198995a307a
1245958bb534
132247936cb8
141195a28cc0
1590577d8ba
hex56293b838

23128684600 has 96 divisors (see below), whose sum is σ = 63438796800. Its totient is φ = 7674019200.

The previous prime is 23128684583. The next prime is 23128684651. The reversal of 23128684600 is 648682132.

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 223060 + ... + 309859.

It is an arithmetic number, because the mean of its divisors is an integer number (660820800).

Almost surely, 223128684600 is an apocalyptic number.

23128684600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23128684600 is an abundant number, since it is smaller than the sum of its proper divisors (40310112200).

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

23128684600 is a wasteful number, since it uses less digits than its factorization.

23128684600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532973 (or 532964 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The spelling of 23128684600 in words is "twenty-three billion, one hundred twenty-eight million, six hundred eighty-four thousand, six hundred".

Divisors: 1 2 4 5 7 8 10 14 20 25 28 31 35 40 50 56 62 70 100 124 140 155 175 200 217 248 280 310 350 434 620 700 775 868 1085 1240 1400 1550 1736 2170 3100 4340 5425 6200 8680 10850 21700 43400 532919 1065838 2131676 2664595 3730433 4263352 5329190 7460866 10658380 13322975 14921732 16520489 18652165 21316760 26645950 29843464 33040978 37304330 53291900 66081956 74608660 82602445 93260825 106583800 115643423 132163912 149217320 165204890 186521650 231286846 330409780 373043300 413012225 462573692 578217115 660819560 746086600 826024450 925147384 1156434230 1652048900 2312868460 2891085575 3304097800 4625736920 5782171150 11564342300 23128684600