Search a number
-
+
20222002212020 = 22571571355367883
BaseRepresentation
bin1001001100100010011010…
…10000100010110010110100
32122121012112002210100221122
410212101031100202302310
510122304130031241040
6111001505400003112
74154664031466420
oct446211520426264
978535462710848
1020222002212020
116497115075834
1223271ab760498
13b38c07a4a97b
144dca704d7b80
15251049c241b5
hex12644d422cb4

20222002212020 has 96 divisors (see below), whose sum is σ = 48846254784768. Its totient is φ = 6888487237632.

The previous prime is 20222002212007. The next prime is 20222002212023. The reversal of 20222002212020 is 2021220022202.

It is a self number, because there is not a number n which added to its sum of digits gives 20222002212020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222002212023) 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, 297860999 + ... + 297928881.

It is an arithmetic number, because the mean of its divisors is an integer number (508815154008).

Almost surely, 220222002212020 is an apocalyptic number.

20222002212020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20222002212020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24423127392384).

20222002212020 is an abundant number, since it is smaller than the sum of its proper divisors (28624252572748).

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

20222002212020 is a wasteful number, since it uses less digits than its factorization.

20222002212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81609 (or 81607 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 20222002212020 its reverse (2021220022202), we get a palindrome (22243222234222).

The spelling of 20222002212020 in words is "twenty trillion, two hundred twenty-two billion, two million, two hundred twelve thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 157 314 628 785 1099 1570 2198 3140 4396 5495 10990 13553 21980 27106 54212 67765 67883 94871 135530 135766 189742 271060 271532 339415 379484 474355 475181 678830 948710 950362 1357660 1897420 1900724 2127821 2375905 4255642 4751810 8511284 9503620 10639105 10657631 14894747 21278210 21315262 29789494 42556420 42630524 53288155 59578988 74473735 74603417 106576310 148947470 149206834 213152620 297894940 298413668 373017085 746034170 920018299 1492068340 1840036598 3680073196 4600091495 6440128093 9200182990 12880256186 18400365980 25760512372 32200640465 64401280930 128802561860 144442872943 288885745886 577771491772 722214364715 1011100110601 1444428729430 2022200221202 2888857458860 4044400442404 5055500553005 10111001106010 20222002212020