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203131103224 = 23719190912691
BaseRepresentation
bin1011110100101110001…
…1101010011111111000
3201102022120000012122111
42331023203222133320
511312003030300344
6233152300302104
720450530613560
oct2751343523770
9642276005574
10203131103224
1179169237415
1233450241934
1316202c1738a
149b8dc93da0
15543d2b3834
hex2f4b8ea7f8

203131103224 has 32 divisors (see below), whose sum is σ = 458190460800. Its totient is φ = 82474282080.

The previous prime is 203131103221. The next prime is 203131103239. The reversal of 203131103224 is 422301131302.

203131103224 is digitally balanced in base 3, 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 = 203131103195 and 203131103204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203131103221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95455282 + ... + 95457409.

It is an arithmetic number, because the mean of its divisors is an integer number (14318451900).

Almost surely, 2203131103224 is an apocalyptic number.

It is an amenable number.

203131103224 is an abundant number, since it is smaller than the sum of its proper divisors (255059357576).

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

203131103224 is a wasteful number, since it uses less digits than its factorization.

203131103224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190912723 (or 190912719 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 203131103224 its reverse (422301131302), we get a palindrome (625432234526).

The spelling of 203131103224 in words is "two hundred three billion, one hundred thirty-one million, one hundred three thousand, two hundred twenty-four".

Divisors: 1 2 4 7 8 14 19 28 38 56 76 133 152 266 532 1064 190912691 381825382 763650764 1336388837 1527301528 2672777674 3627341129 5345555348 7254682258 10691110696 14509364516 25391387903 29018729032 50782775806 101565551612 203131103224