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20010102012200 = 23521919993263383
BaseRepresentation
bin1001000110010111101110…
…00001011011100100101000
32121211221120102011220012202
410203023313001123210220
510110321142103342300
6110320303003155332
74133452660506326
oct443136701334450
977757512156182
1020010102012200
116415266a18353
1222b2112815b48
13b21c3816a851
144d26cbb76d16
1524a796b94ad5
hex1232f705b928

20010102012200 has 96 divisors (see below), whose sum is σ = 48974727172800. Its totient is φ = 7582367439360.

The previous prime is 20010102012193. The next prime is 20010102012217. The reversal of 20010102012200 is 221020101002.

It is a happy 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, 75841709 + ... + 76105091.

It is an arithmetic number, because the mean of its divisors is an integer number (510153408050).

Almost surely, 220010102012200 is an apocalyptic number.

20010102012200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20010102012200 is an abundant number, since it is smaller than the sum of its proper divisors (28964625160600).

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

20010102012200 is a wasteful number, since it uses less digits than its factorization.

20010102012200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283411 (or 283402 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20010102012200 its reverse (221020101002), we get a palindrome (20231122113202).

The spelling of 20010102012200 in words is "twenty trillion, ten billion, one hundred two million, twelve thousand, two hundred".

Divisors: 1 2 4 5 8 10 19 20 25 38 40 50 76 95 100 152 190 200 380 475 760 950 1900 3800 19993 39986 79972 99965 159944 199930 263383 379867 399860 499825 526766 759734 799720 999650 1053532 1316915 1519468 1899335 1999300 2107064 2633830 3038936 3798670 3998600 5004277 5267660 6584575 7597340 9496675 10008554 10535320 13169150 15194680 18993350 20017108 25021385 26338300 37986700 40034216 50042770 52676600 75973400 100085540 125106925 200171080 250213850 500427700 1000855400 5265816319 10531632638 21063265276 26329081595 42126530552 52658163190 100050510061 105316326380 131645407975 200101020122 210632652760 263290815950 400202040244 500252550305 526581631900 800404080488 1000505100610 1053163263800 2001010201220 2501262751525 4002020402440 5002525503050 10005051006100 20010102012200