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20010312020112 = 2431997709319037
BaseRepresentation
bin1001000110011000000111…
…00010100011000010010000
32121211222010001100101220120
410203030003202203002100
510110322104334120422
6110320335504310240
74133461120525311
oct443140342430220
977758101311816
1020010312020112
116415364516407
1222b2171012380
13b21c6c81a19b
144d270ba02608
1524a7aa32945c
hex1233038a3090

20010312020112 has 160 divisors (see below), whose sum is σ = 55052686819200. Its totient is φ = 6245060788224.

The previous prime is 20010312020087. The next prime is 20010312020117. The reversal of 20010312020112 is 21102021301002.

It is a junction number, because it is equal to n+sod(n) for n = 20010312020091 and 20010312020100.

It is not an unprimeable number, because it can be changed into a prime (20010312020117) 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, 62561458 + ... + 62880494.

It is an arithmetic number, because the mean of its divisors is an integer number (344079292620).

Almost surely, 220010312020112 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 20010312020112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27526343409600).

20010312020112 is an abundant number, since it is smaller than the sum of its proper divisors (35042374799088).

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

20010312020112 is a wasteful number, since it uses less digits than its factorization.

20010312020112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319873 (or 319867 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20010312020112 its reverse (21102021301002), we get a palindrome (41112333321114).

The spelling of 20010312020112 in words is "twenty trillion, ten billion, three hundred twelve million, twenty thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 19 24 38 48 57 76 97 114 152 194 228 291 304 388 456 582 709 776 912 1164 1418 1552 1843 2127 2328 2836 3686 4254 4656 5529 5672 7372 8508 11058 11344 13471 14744 17016 22116 26942 29488 34032 40413 44232 53884 68773 80826 88464 107768 137546 161652 206319 215536 275092 319037 323304 412638 550184 638074 646608 825276 957111 1100368 1276148 1306687 1650552 1914222 2552296 2613374 3301104 3828444 3920061 5104592 5226748 6061703 7656888 7840122 10453496 12123406 15313776 15680244 18185109 20906992 24246812 30946589 31360488 36370218 48493624 61893178 62720976 72740436 92839767 96987248 123786356 145480872 185679534 226197233 247572712 290961744 371359068 452394466 495145424 587985191 678591699 742718136 904788932 1175970382 1357183398 1485436272 1763955573 1809577864 2351940764 2714366796 3527911146 3619155728 4297747427 4703881528 5428733592 7055822292 8595494854 9407763056 10857467184 12893242281 14111644584 17190989708 21941131601 25786484562 28223289168 34381979416 43882263202 51572969124 65823394803 68763958832 87764526404 103145938248 131646789606 175529052808 206291876496 263293579212 351058105616 416881500419 526587158424 833763000838 1053174316848 1250644501257 1667526001676 2501289002514 3335052003352 5002578005028 6670104006704 10005156010056 20010312020112