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203212222230 = 23523294510467
BaseRepresentation
bin1011110101000001100…
…1000110111100010110
3201102112012122111000010
42331100121012330112
511312134312102410
6233204315101050
720452534250253
oct2752031067426
9642465574003
10203212222230
1179200002316
1233473441786
1316216979ba4
149b9a96c42a
155445488c20
hex2f50646f16

203212222230 has 32 divisors (see below), whose sum is σ = 508914088704. Its totient is φ = 51833842016.

The previous prime is 203212222141. The next prime is 203212222237. The reversal of 203212222230 is 32222212302.

203212222230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 203212222197 and 203212222206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203212222237) 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 15 ways as a sum of consecutive naturals, for example, 147254544 + ... + 147255923.

It is an arithmetic number, because the mean of its divisors is an integer number (15903565272).

Almost surely, 2203212222230 is an apocalyptic number.

203212222230 is an abundant number, since it is smaller than the sum of its proper divisors (305701866474).

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

203212222230 is a wasteful number, since it uses less digits than its factorization.

203212222230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294510500.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 203212222230 its reverse (32222212302), we get a palindrome (235434434532).

The spelling of 203212222230 in words is "two hundred three billion, two hundred twelve million, two hundred twenty-two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 115 138 230 345 690 294510467 589020934 883531401 1472552335 1767062802 2945104670 4417657005 6773740741 8835314010 13547481482 20321222223 33868703705 40642444446 67737407410 101606111115 203212222230