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13223342220 = 223511217195639
BaseRepresentation
bin11000101000010110…
…00011000010001100
31021010120001101101120
430110023003002030
5204040133422340
610024050040540
7645454361064
oct142413030214
937116041346
1013223342220
115676260800
122690579150
13132973c76a
148d62a63a4
15525d6c4d0
hex3142c308c

13223342220 has 288 divisors, whose sum is σ = 45367257600. Its totient is φ = 2857789440.

The previous prime is 13223342213. The next prime is 13223342221. The reversal of 13223342220 is 2224332231.

It is not an unprimeable number, because it can be changed into a prime (13223342221) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2342161 + ... + 2347799.

It is an arithmetic number, because the mean of its divisors is an integer number (157525200).

Almost surely, 213223342220 is an apocalyptic number.

13223342220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13223342220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22683628800).

13223342220 is an abundant number, since it is smaller than the sum of its proper divisors (32143915380).

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

13223342220 is a wasteful number, since it uses less digits than its factorization.

13223342220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5709 (or 5696 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 13223342220 its reverse (2224332231), we get a palindrome (15447674451).

The spelling of 13223342220 in words is "thirteen billion, two hundred twenty-three million, three hundred forty-two thousand, two hundred twenty".