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210111312020200 = 23522389439747409
BaseRepresentation
bin101111110001100001011010…
…000111011100001011101000
31000112221110000121001211010121
4233301201122013130023220
5210014430431334121300
62022511445413253024
762154020116355263
oct5761413207341350
91015843017054117
10210111312020200
1160a47786054698
121b694b91334174
13903154769a4c6
1439c56282a5cda
15194572639181a
hexbf185a1dc2e8

210111312020200 has 48 divisors (see below), whose sum is σ = 488713284103500. Its totient is φ = 84009344824320.

The previous prime is 210111312020191. The next prime is 210111312020209. The reversal of 210111312020200 is 2020213111012.

210111312020200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (210111312020191) and next prime (210111312020209).

It can be written as a sum of positive squares in 6 ways, for example, as 6714141239556 + 203397170780644 = 2591166^2 + 14261738^2 .

It is not an unprimeable number, because it can be changed into a prime (210111312020209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 219395905 + ... + 220351504.

Almost surely, 2210111312020200 is an apocalyptic number.

210111312020200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210111312020200 is an abundant number, since it is smaller than the sum of its proper divisors (278601972083300).

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

210111312020200 is a wasteful number, since it uses less digits than its factorization.

210111312020200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439749814 (or 439749805 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 210111312020200 its reverse (2020213111012), we get a palindrome (212131525131212).

The spelling of 210111312020200 in words is "two hundred ten trillion, one hundred eleven billion, three hundred twelve million, twenty thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 2389 4778 9556 11945 19112 23890 47780 59725 95560 119450 238900 477800 439747409 879494818 1758989636 2198737045 3517979272 4397474090 8794948180 10993685225 17589896360 21987370450 43974740900 87949481800 1050556560101 2101113120202 4202226240404 5252782800505 8404452480808 10505565601010 21011131202020 26263914002525 42022262404040 52527828005050 105055656010100 210111312020200