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203320203212 = 227151443108553
BaseRepresentation
bin1011110101011011010…
…1000001011111001100
3201102210201211111001202
42331112311001133030
511312344433000322
6233223133325032
720455315132520
oct2752665013714
9642721744052
10203320203212
1179255a54aa5
12334a3636778
1316233156269
149bab039d80
15544ebb8292
hex2f56d417cc

203320203212 has 48 divisors (see below), whose sum is σ = 410261171712. Its totient is φ = 86363971200.

The previous prime is 203320203179. The next prime is 203320203253. The reversal of 203320203212 is 212302023302.

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, 1818728 + ... + 1927280.

It is an arithmetic number, because the mean of its divisors is an integer number (8547107744).

Almost surely, 2203320203212 is an apocalyptic number.

It is an amenable number.

203320203212 is an abundant number, since it is smaller than the sum of its proper divisors (206940968500).

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

203320203212 is a wasteful number, since it uses less digits than its factorization.

203320203212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109158 (or 109156 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 203320203212 its reverse (212302023302), we get a palindrome (415622226514).

The spelling of 203320203212 in words is "two hundred three billion, three hundred twenty million, two hundred three thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 151 302 443 604 886 1057 1772 2114 3101 4228 6202 12404 66893 108553 133786 217106 267572 434212 468251 759871 936502 1519742 1873004 3039484 16391503 32783006 48088979 65566012 96177958 114740521 192355916 229481042 336622853 458962084 673245706 1346491412 7261435829 14522871658 29045743316 50830050803 101660101606 203320203212