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203212221230 = 25431313607531
BaseRepresentation
bin1011110101000001100…
…1000110101100101110
3201102112012122102122002
42331100121012230232
511312134312034410
6233204315052302
720452534244324
oct2752031065456
9642465572562
10203212221230
1179200001597
1233473441092
13162169795b5
149b9a96bd14
1554454887a5
hex2f50646b2e

203212221230 has 32 divisors (see below), whose sum is σ = 377145825408. Its totient is φ = 78788455200.

The previous prime is 203212221211. The next prime is 203212221253. The reversal of 203212221230 is 32122212302.

It is a happy number.

203212221230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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, 1747436 + ... + 1860095.

It is an arithmetic number, because the mean of its divisors is an integer number (11785807044).

Almost surely, 2203212221230 is an apocalyptic number.

203212221230 is a deficient number, since it is larger than the sum of its proper divisors (173933604178).

203212221230 is a wasteful number, since it uses less digits than its factorization.

203212221230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3607712.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 203212221230 its reverse (32122212302), we get a palindrome (235334433532).

The spelling of 203212221230 in words is "two hundred three billion, two hundred twelve million, two hundred twenty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 43 86 131 215 262 430 655 1310 5633 11266 28165 56330 3607531 7215062 18037655 36075310 155123833 310247666 472586561 775619165 945173122 1551238330 2362932805 4725865610 20321222123 40642444246 101606110615 203212221230