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2220000200020 = 2251742115509293
BaseRepresentation
bin100000010011100010010…
…100101100010101010100
321212020012122000222002101
4200103202110230111110
5242333030022400040
64415504244451444
7316250450231101
oct40234224542524
97766178028071
102220000200020
11786551268309
122ba3016a9b84
131314642cb215
147963cca9aa8
153cb3220c09a
hex204e252c554

2220000200020 has 48 divisors (see below), whose sum is σ = 4947961083408. Its totient is φ = 833779537920.

The previous prime is 2220000199973. The next prime is 2220000200069. The reversal of 2220000200020 is 200020000222.

It can be written as a sum of positive squares in 8 ways, for example, as 7962706756 + 2212037493264 = 89234^2 + 1487292^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

2220000200020 is a modest number, since divided by 200020 gives 22200 as remainder.

It is a congruent number.

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, 7611507 + ... + 7897786.

It is an arithmetic number, because the mean of its divisors is an integer number (103082522571).

Almost surely, 22220000200020 is an apocalyptic number.

2220000200020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220000200020 is an abundant number, since it is smaller than the sum of its proper divisors (2727960883388).

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

2220000200020 is a wasteful number, since it uses less digits than its factorization.

2220000200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15509740 (or 15509738 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

Adding to 2220000200020 its reverse (200020000222), we get a palindrome (2420020200242).

The spelling of 2220000200020 in words is "two trillion, two hundred twenty billion, two hundred thousand, twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 421 842 1684 2105 4210 7157 8420 14314 28628 35785 71570 143140 15509293 31018586 62037172 77546465 155092930 263657981 310185860 527315962 1054631924 1318289905 2636579810 5273159620 6529412353 13058824706 26117649412 32647061765 65294123530 111000010001 130588247060 222000020002 444000040004 555000050005 1110000100010 2220000200020