Search a number
-
+
20020210120212 = 223171316771106569
BaseRepresentation
bin1001000110101010100011…
…00000110011011000010100
32121212220122212100222122120
410203111101200303120110
510111002342242321322
6110325054011055540
74134261320143101
oct443252140633024
977786585328576
1020020210120212
116419583761525
1222b4073a415b0
13b22b8937a153
144d2daa3dbaa8
1524ab892a9a5c
hex123551833614

20020210120212 has 96 divisors (see below), whose sum is σ = 49912928714880. Its totient is φ = 6223692533760.

The previous prime is 20020210120199. The next prime is 20020210120241. The reversal of 20020210120212 is 21202101202002.

It is a junction number, because it is equal to n+sod(n) for n = 20020210120191 and 20020210120200.

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, 17538864 + ... + 18645432.

It is an arithmetic number, because the mean of its divisors is an integer number (519926340780).

Almost surely, 220020210120212 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 20020210120212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24956464357440).

20020210120212 is an abundant number, since it is smaller than the sum of its proper divisors (29892718594668).

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

20020210120212 is a wasteful number, since it uses less digits than its factorization.

20020210120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107401 (or 1107399 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20020210120212 its reverse (21202101202002), we get a palindrome (41222311322214).

The spelling of 20020210120212 in words is "twenty trillion, twenty billion, two hundred ten million, one hundred twenty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 131 204 262 393 524 677 786 1354 1572 2031 2227 2708 4062 4454 6681 8124 8908 11509 13362 23018 26724 34527 46036 69054 88687 138108 177374 266061 354748 532122 1064244 1106569 1507679 2213138 3015358 3319707 4426276 4523037 6030716 6639414 9046074 13278828 18092148 18811673 37623346 56435019 75246692 112870038 144960539 225740076 289921078 434881617 579842156 749147213 869763234 1498294426 1739526468 2247441639 2464329163 2996588852 4494883278 4928658326 7392987489 8989766556 9857316652 12735502621 14785974978 25471005242 29571949956 38206507863 50942010484 76413015726 98138284903 152826031452 196276569806 294414854709 392553139612 588829709418 1177659418836 1668350843351 3336701686702 5005052530053 6673403373404 10010105060106 20020210120212