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20010112011012 = 22323144475018371
BaseRepresentation
bin1001000110010111101111…
…00111100100101100000100
32121211221121002222220000010
410203023313213210230010
510110321202133323022
6110320304001350220
74133453141502354
oct443136747445404
977757532886003
1020010112011012
116415271627632
1222b2116038370
13b21c3a25b9c6
144d26cd21ab64
1524a7979bc50c
hex1232f79e4b04

20010112011012 has 48 divisors (see below), whose sum is σ = 48723654776832. Its totient is φ = 6379592825760.

The previous prime is 20010112010951. The next prime is 20010112011023. The reversal of 20010112011012 is 21011021101002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1478187 + ... + 6496557.

It is an arithmetic number, because the mean of its divisors is an integer number (1015076141184).

Almost surely, 220010112011012 is an apocalyptic number.

It is an amenable number.

20010112011012 is an abundant number, since it is smaller than the sum of its proper divisors (28713542765820).

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

20010112011012 is a wasteful number, since it uses less digits than its factorization.

20010112011012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5032848 (or 5032846 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20010112011012 its reverse (21011021101002), we get a palindrome (41021133112014).

The spelling of 20010112011012 in words is "twenty trillion, ten billion, one hundred twelve million, eleven thousand, twelve".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 14447 28894 43341 57788 86682 173364 332281 664562 996843 1329124 1993686 3987372 5018371 10036742 15055113 20073484 30110226 60220452 115422533 230845066 346267599 461690132 692535198 1385070396 72500405837 145000811674 217501217511 290001623348 435002435022 870004870044 1667509334251 3335018668502 5002528002753 6670037337004 10005056005506 20010112011012