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2100112000100 = 2252163128841227
BaseRepresentation
bin11110100011111000011…
…011100000010001100100
321102202202102020101110122
4132203320123200101210
5233402012133000400
64244440024341112
7304504506315332
oct36437033402144
97382672211418
102100112000100
1173a71a524254
1229b023314798
1312306932965a
1473908746b52
1539966e8c685
hex1e8f86e0464

2100112000100 has 36 divisors (see below), whose sum is σ = 4585201622064. Its totient is φ = 834891144480.

The previous prime is 2100112000099. The next prime is 2100112000109. The reversal of 2100112000100 is 10002110012.

It is not an unprimeable number, because it can be changed into a prime (2100112000109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64404314 + ... + 64436913.

It is an arithmetic number, because the mean of its divisors is an integer number (127366711724).

Almost surely, 22100112000100 is an apocalyptic number.

2100112000100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100112000100 is an abundant number, since it is smaller than the sum of its proper divisors (2485089621964).

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

2100112000100 is a wasteful number, since it uses less digits than its factorization.

2100112000100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128841404 (or 128841397 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 2100112000100 its reverse (10002110012), we get a palindrome (2110114110112).

The spelling of 2100112000100 in words is "two trillion, one hundred billion, one hundred twelve million, one hundred", and thus it is an aban number.

Divisors: 1 2 4 5 10 20 25 50 100 163 326 652 815 1630 3260 4075 8150 16300 128841227 257682454 515364908 644206135 1288412270 2576824540 3221030675 6442061350 12884122700 21001120001 42002240002 84004480004 105005600005 210011200010 420022400020 525028000025 1050056000050 2100112000100