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20102020123300 = 22522967311538933
BaseRepresentation
bin1001001001000010111011…
…10001001100101010100100
32122011201211100022202002221
410210201131301030222210
510113322414122421200
6110430423543242124
74143215540533453
oct444413561145244
978151740282087
1020102020123300
116450245334725
122307aa5a49344
13b2a7c64950bb
144d6d2b6d4b9a
1524cd7660a91a
hex12485dc4caa4

20102020123300 has 144 divisors (see below), whose sum is σ = 45236879810640. Its totient is φ = 7744412712960.

The previous prime is 20102020123277. The next prime is 20102020123313. The reversal of 20102020123300 is 332102020102.

It can be written as a sum of positive squares in 24 ways, for example, as 13793855424064 + 6308164699236 = 3714008^2 + 2511606^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2250305634 + ... + 2250314566.

It is an arithmetic number, because the mean of its divisors is an integer number (314144998685).

Almost surely, 220102020123300 is an apocalyptic number.

20102020123300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20102020123300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22618439905320).

20102020123300 is an abundant number, since it is smaller than the sum of its proper divisors (25134859687340).

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

20102020123300 is a wasteful number, since it uses less digits than its factorization.

20102020123300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10802 (or 10795 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20102020123300 its reverse (332102020102), we get a palindrome (20434122143402).

The spelling of 20102020123300 in words is "twenty trillion, one hundred two billion, twenty million, one hundred twenty-three thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 29 50 58 100 116 145 290 580 673 725 1153 1346 1450 2306 2692 2900 3365 4612 5765 6730 8933 11530 13460 16825 17866 19517 23060 28825 33437 33650 35732 39034 44665 57650 66874 67300 78068 89330 97585 115300 133748 167185 178660 195170 223325 259057 334370 390340 446650 487925 518114 668740 775969 835925 893300 975850 1036228 1295285 1551938 1671850 1951700 2590570 3103876 3343700 3879845 5181140 6011909 6476425 7759690 10299749 12023818 12952850 15519380 19399225 20599498 22503101 24047636 25905700 30059545 38798450 41198996 45006202 51498745 60119090 77596900 90012404 102997490 112515505 120238180 150297725 174345361 205994980 225031010 257493725 298692721 300595450 348690722 450062020 514987450 562577525 597385442 601190900 697381444 871726805 1029974900 1125155050 1194770884 1493463605 1743453610 2250310100 2986927210 3486907220 4358634025 5973854420 6931731077 7467318025 8717268050 13863462154 14934636050 17434536100 27726924308 29869272100 34658655385 69317310770 138634621540 173293276925 201020201233 346586553850 402040402466 693173107700 804080804932 1005101006165 2010202012330 4020404024660 5025505030825 10051010061650 20102020123300