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13305042220 = 2251935013269
BaseRepresentation
bin11000110010000101…
…01101010100101100
31021100020210011201111
430121002231110230
5204222042322340
610040125121404
7650465664361
oct143102552454
937306704644
1013305042220
115708393168
1226b39b9264
131340646862
14903092468
1552d109aea
hex3190ad52c

13305042220 has 24 divisors (see below), whose sum is σ = 29411146800. Its totient is φ = 5041910592.

The previous prime is 13305042217. The next prime is 13305042221. The reversal of 13305042220 is 2224050331.

It is a junction number, because it is equal to n+sod(n) for n = 13305042191 and 13305042200.

It is not an unprimeable number, because it can be changed into a prime (13305042221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17506255 + ... + 17507014.

It is an arithmetic number, because the mean of its divisors is an integer number (1225464450).

Almost surely, 213305042220 is an apocalyptic number.

13305042220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13305042220 is an abundant number, since it is smaller than the sum of its proper divisors (16106104580).

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

13305042220 is a wasteful number, since it uses less digits than its factorization.

13305042220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35013297 (or 35013295 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 13305042220 its reverse (2224050331), we get a palindrome (15529092551).

The spelling of 13305042220 in words is "thirteen billion, three hundred five million, forty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 35013269 70026538 140053076 175066345 350132690 665252111 700265380 1330504222 2661008444 3326260555 6652521110 13305042220