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212200100200 = 235211412718681
BaseRepresentation
bin1100010110100000011…
…1001001000101101000
3202021201120220222201101
43011220013021011220
511434041211201300
6241252224331144
721221342043154
oct3055007110550
9667646828641
10212200100200
1181aa2474040
1235161473ab4
1317019a7478a
14a3b050a064
1557be56db6a
hex31681c9168

212200100200 has 192 divisors, whose sum is σ = 553442077440. Its totient is φ = 74995200000.

The previous prime is 212200100173. The next prime is 212200100207. The reversal of 212200100200 is 2001002212.

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

It is not an unprimeable number, because it can be changed into a prime (212200100207) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24439860 + ... + 24448540.

It is an arithmetic number, because the mean of its divisors is an integer number (2882510820).

Almost surely, 2212200100200 is an apocalyptic number.

212200100200 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 212200100200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276721038720).

212200100200 is an abundant number, since it is smaller than the sum of its proper divisors (341241977240).

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

212200100200 is a wasteful number, since it uses less digits than its factorization.

212200100200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9020 (or 9011 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 212200100200 its reverse (2001002212), we get a palindrome (214201102412).

The spelling of 212200100200 in words is "two hundred twelve billion, two hundred million, one hundred thousand, two hundred".