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20010210000100 = 2252257778607393
BaseRepresentation
bin1001000110010111111010…
…11101010111110011100100
32121211221211221101020202121
410203023331131113303210
510110321402230000400
6110320321421515324
74133455441421005
oct443137535276344
977757757336677
1020010210000100
116415311975251
1222b2142a12b44
13b21c5464a108
144d26dc2471ac
1524a7a13c621a
hex1232fd757ce4

20010210000100 has 36 divisors (see below), whose sum is σ = 43591113560484. Its totient is φ = 7972939694080.

The previous prime is 20010210000091. The next prime is 20010210000113. The reversal of 20010210000100 is 100001201002.

It can be written as a sum of positive squares in 6 ways, for example, as 2588668616356 + 17421541383744 = 1608934^2 + 4173912^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 389277997 + ... + 389329396.

It is an arithmetic number, because the mean of its divisors is an integer number (1210864265569).

Almost surely, 220010210000100 is an apocalyptic number.

20010210000100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20010210000100 is an abundant number, since it is smaller than the sum of its proper divisors (23580903560384).

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

20010210000100 is a wasteful number, since it uses less digits than its factorization.

20010210000100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778607664 (or 778607657 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 20010210000100 its reverse (100001201002), we get a palindrome (20110211201102).

The spelling of 20010210000100 in words is "twenty trillion, ten billion, two hundred ten million, one hundred", and thus it is an aban number.

Divisors: 1 2 4 5 10 20 25 50 100 257 514 1028 1285 2570 5140 6425 12850 25700 778607393 1557214786 3114429572 3893036965 7786073930 15572147860 19465184825 38930369650 77860739300 200102100001 400204200002 800408400004 1000510500005 2001021000010 4002042000020 5002552500025 10005105000050 20010210000100