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2020120112112 = 243107919427993
BaseRepresentation
bin11101011001011000100…
…010101010101111110000
321011010021122101110001120
4131121120202222233300
5231044201222041422
64144010320502240
7265643313431034
oct35313042525760
97133248343046
102020120112112
11709801158913
1228761a17a980
1311865baa4c5b
146dabaac01c4
153783457245c
hex1d6588aabf0

2020120112112 has 80 divisors (see below), whose sum is σ = 5273159996160. Its totient is φ = 666352728576.

The previous prime is 2020120112111. The next prime is 2020120112137. The reversal of 2020120112112 is 2112110210202.

It is a junction number, because it is equal to n+sod(n) for n = 2020120112091 and 2020120112100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020120112111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4505988 + ... + 4933980.

It is an arithmetic number, because the mean of its divisors is an integer number (65914499952).

Almost surely, 22020120112112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2020120112112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2636579998080).

2020120112112 is an abundant number, since it is smaller than the sum of its proper divisors (3253039884048).

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

2020120112112 is a wasteful number, since it uses less digits than its factorization.

2020120112112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429030 (or 429024 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2020120112112 its reverse (2112110210202), we get a palindrome (4132230322314).

The spelling of 2020120112112 in words is "two trillion, twenty billion, one hundred twenty million, one hundred twelve thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 48 107 214 321 428 642 856 919 1284 1712 1838 2568 2757 3676 5136 5514 7352 11028 14704 22056 44112 98333 196666 294999 393332 427993 589998 786664 855986 1179996 1283979 1573328 1711972 2359992 2567958 3423944 4719984 5135916 6847888 10271832 20543664 45795251 91590502 137385753 183181004 274771506 366362008 393325567 549543012 732724016 786651134 1099086024 1179976701 1573302268 2198172048 2359953402 3146604536 4719906804 6293209072 9439813608 18879627216 42085835669 84171671338 126257507007 168343342676 252515014014 336686685352 505030028028 673373370704 1010060056056 2020120112112