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13420210220 = 225671010511
BaseRepresentation
bin11000111111110100…
…00010100000101100
31021122021111022111222
430133322002200230
5204441033211340
610055401402512
7653364622214
oct143772024054
937567438458
1013420210220
1157673a462a
122726499438
13135b46b2c1
149144b1244
155382a88b5
hex31fe8282c

13420210220 has 12 divisors (see below), whose sum is σ = 28182441504. Its totient is φ = 5368084080.

The previous prime is 13420210213. The next prime is 13420210229. The reversal of 13420210220 is 2201202431.

It is not an unprimeable number, because it can be changed into a prime (13420210229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335505236 + ... + 335505275.

It is an arithmetic number, because the mean of its divisors is an integer number (2348536792).

Almost surely, 213420210220 is an apocalyptic number.

13420210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13420210220 is an abundant number, since it is smaller than the sum of its proper divisors (14762231284).

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

13420210220 is a wasteful number, since it uses less digits than its factorization.

13420210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671010520 (or 671010518 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 13420210220 its reverse (2201202431), we get a palindrome (15621412651).

The spelling of 13420210220 in words is "thirteen billion, four hundred twenty million, two hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 671010511 1342021022 2684042044 3355052555 6710105110 13420210220