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128903449675260 = 223513258476393811
BaseRepresentation
bin11101010011110010101100…
…010101000000010111111100
3121220102001100001010011212110
4131103302230111000113330
5113343423231104102020
61134053232142534020
736102652435554261
oct3523625425002774
9556361301104773
10128903449675260
1138088711921327
121255a428597310
1356c070a3a63a0
1423b8d62d13268
15ed811b8b38e0
hex753cac5405fc

128903449675260 has 96 divisors (see below), whose sum is σ = 388708578058752. Its totient is φ = 31728847345920.

The previous prime is 128903449675237. The next prime is 128903449675261. The reversal of 128903449675260 is 62576944309821.

It is a junction number, because it is equal to n+sod(n) for n = 128903449675191 and 128903449675200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128903449675261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16963755 + ... + 23357565.

It is an arithmetic number, because the mean of its divisors is an integer number (4049047688112).

It is a 1-persistent number, because it is pandigital, but 2⋅128903449675260 = 257806899350520 is not.

Almost surely, 2128903449675260 is an apocalyptic number.

128903449675260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128903449675260 is an abundant number, since it is smaller than the sum of its proper divisors (259805128383492).

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

128903449675260 is a wasteful number, since it uses less digits than its factorization.

128903449675260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6419683 (or 6419681 counting only the distinct ones).

The product of its (nonzero) digits is 156764160, while the sum is 66.

The spelling of 128903449675260 in words is "one hundred twenty-eight trillion, nine hundred three billion, four hundred forty-nine million, six hundred seventy-five thousand, two hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 25847 51694 77541 103388 129235 155082 258470 310164 336011 387705 516940 672022 775410 1008033 1344044 1550820 1680055 2016066 3360110 4032132 5040165 6393811 6720220 10080330 12787622 19181433 20160660 25575244 31969055 38362866 63938110 76725732 83119543 95907165 127876220 166239086 191814330 249358629 332478172 383628660 415597715 498717258 831195430 997434516 1246793145 1662390860 2493586290 4987172580 165260832917 330521665834 495782498751 661043331668 826304164585 991564997502 1652608329170 1983129995004 2148390827921 2478912493755 3305216658340 4296781655842 4957824987510 6445172483763 8593563311684 9915649975020 10741954139605 12890344967526 21483908279210 25780689935052 32225862418815 42967816558420 64451724837630 128903449675260