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210112111012020 = 22357919544360099
BaseRepresentation
bin101111110001100010001001…
…101111010110100010110100
31000112221112002021111210212020
4233301202021233112202310
5210014434100404341040
62022512100554353140
762154045660602430
oct5761421157264264
91015845067453766
10210112111012020
1160a48056067008
121b695174a2b7b0
139031644089529
1439c56a244b9c0
1519457715b9cd0
hexbf1889bd68b4

210112111012020 has 96 divisors (see below), whose sum is σ = 673090376448000. Its totient is φ = 47973366716544.

The previous prime is 210112111012009. The next prime is 210112111012033. The reversal of 210112111012020 is 20210111211012.

It is a happy number.

It is a super-2 number, since 2×2101121110120202 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 271794070 + ... + 272566029.

It is an arithmetic number, because the mean of its divisors is an integer number (7011358088000).

Almost surely, 2210112111012020 is an apocalyptic number.

210112111012020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210112111012020 is an abundant number, since it is smaller than the sum of its proper divisors (462978265435980).

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

210112111012020 is a wasteful number, since it uses less digits than its factorization.

210112111012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544361037 (or 544361035 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 210112111012020 its reverse (20210111211012), we get a palindrome (230322222223032).

The spelling of 210112111012020 in words is "two hundred ten trillion, one hundred twelve billion, one hundred eleven million, twelve thousand, twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 919 1838 2757 3676 4595 5514 6433 9190 11028 12866 13785 18380 19299 25732 27570 32165 38598 55140 64330 77196 96495 128660 192990 385980 544360099 1088720198 1633080297 2177440396 2721800495 3266160594 3810520693 5443600990 6532321188 7621041386 8165401485 10887201980 11431562079 15242082772 16330802970 19052603465 22863124158 32661605940 38105206930 45726248316 57157810395 76210413860 114315620790 228631241580 500266930981 1000533861962 1500800792943 2001067723924 2501334654905 3001601585886 3501868516867 5002669309810 6003203171772 7003737033734 7504003964715 10005338619620 10505605550601 14007474067468 15008007929430 17509342584335 21011211101202 30016015858860 35018685168670 42022422202404 52528027753005 70037370337340 105056055506010 210112111012020