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200203211220 = 223526312687149
BaseRepresentation
bin1011101001110100001…
…0101001000111010100
3201010202111122212212220
42322131002221013110
511240004010224340
6231545545342340
720315136134355
oct2723502510724
9633674585786
10200203211220
11779a6547861
12329737979b0
1315b5745bcbc
14999309bd2c
15531b214ed0
hex2e9d0a91d4

200203211220 has 48 divisors (see below), whose sum is σ = 562700476800. Its totient is φ = 53184524416.

The previous prime is 200203211183. The next prime is 200203211233. The reversal of 200203211220 is 22112302002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 200203211220.

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, 6327795 + ... + 6359354.

It is an arithmetic number, because the mean of its divisors is an integer number (11722926600).

Almost surely, 2200203211220 is an apocalyptic number.

200203211220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200203211220 is an abundant number, since it is smaller than the sum of its proper divisors (362497265580).

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

200203211220 is a wasteful number, since it uses less digits than its factorization.

200203211220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12687424 (or 12687422 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 200203211220 its reverse (22112302002), we get a palindrome (222315513222).

The spelling of 200203211220 in words is "two hundred billion, two hundred three million, two hundred eleven thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 263 526 789 1052 1315 1578 2630 3156 3945 5260 7890 15780 12687149 25374298 38061447 50748596 63435745 76122894 126871490 152245788 190307235 253742980 380614470 761228940 3336720187 6673440374 10010160561 13346880748 16683600935 20020321122 33367201870 40040642244 50050802805 66734403740 100101605610 200203211220