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20022242020 = 225111018591049
BaseRepresentation
bin10010101001011010…
…110010101011100100
31220200101101021120021
4102221122302223210
5312001143221040
613110442044524
71306112151304
oct225132625344
956611337507
1020022242020
118545040860
123a694a9744
131b711946b1
14d7d235604
157c2bb124a
hex4a96b2ae4

20022242020 has 96 divisors (see below), whose sum is σ = 46421424000. Its totient is φ = 7193472000.

The previous prime is 20022241991. The next prime is 20022242041. The reversal of 20022242020 is 2024222002.

It is a junction number, because it is equal to n+sod(n) for n = 20022241985 and 20022242003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19086456 + ... + 19087504.

It is an arithmetic number, because the mean of its divisors is an integer number (483556500).

Almost surely, 220022242020 is an apocalyptic number.

20022242020 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 20022242020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23210712000).

20022242020 is an abundant number, since it is smaller than the sum of its proper divisors (26399181980).

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

20022242020 is a wasteful number, since it uses less digits than its factorization.

20022242020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2029 (or 2027 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 20022242020 its reverse (2024222002), we get a palindrome (22046464022).

It can be divided in two parts, 200222 and 42020, that added together give a palindrome (242242).

The spelling of 20022242020 in words is "twenty billion, twenty-two million, two hundred forty-two thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 101 110 202 220 404 505 859 1010 1049 1111 1718 2020 2098 2222 3436 4196 4295 4444 5245 5555 8590 9449 10490 11110 11539 17180 18898 20980 22220 23078 37796 46156 47245 57695 86759 94490 105949 115390 173518 188980 211898 230780 347036 423796 433795 529745 867590 901091 954349 1059490 1165439 1735180 1802182 1908698 2118980 2330878 3604364 3817396 4505455 4661756 4771745 5827195 9010910 9543490 9912001 11654390 18021820 19086980 19824002 23308780 39648004 49560005 91010191 99120010 182020382 198240020 364040764 455050955 910101910 1001112101 1820203820 2002224202 4004448404 5005560505 10011121010 20022242020