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13203022220 = 225660151111
BaseRepresentation
bin11000100101111011…
…00010000110001100
31021002010211000120222
430102331202012030
5204014433202340
610022042330512
7645116560103
oct142275420614
937063730528
1013203022220
115665842013
1226857b9a38
1313254767ab
148d36d703a
155241a68b5
hex312f6218c

13203022220 has 12 divisors (see below), whose sum is σ = 27726346704. Its totient is φ = 5281208880.

The previous prime is 13203022219. The next prime is 13203022237. The reversal of 13203022220 is 2222030231.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330075536 + ... + 330075575.

It is an arithmetic number, because the mean of its divisors is an integer number (2310528892).

Almost surely, 213203022220 is an apocalyptic number.

13203022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13203022220 is an abundant number, since it is smaller than the sum of its proper divisors (14523324484).

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

13203022220 is a wasteful number, since it uses less digits than its factorization.

13203022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660151120 (or 660151118 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 13203022220 its reverse (2222030231), we get a palindrome (15425052451).

The spelling of 13203022220 in words is "thirteen billion, two hundred three million, twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 660151111 1320302222 2640604444 3300755555 6601511110 13203022220