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13404342220 = 2251933334667
BaseRepresentation
bin11000111101111011…
…00000011111001100
31021121011122010201021
430132331200133030
5204423002422340
610054033323524
7653113012633
oct143675403714
937534563637
1013404342220
115759446785
1227211065a4
1313580a3859
1491234051a
15536bc1e4a
hex31ef607cc

13404342220 has 24 divisors (see below), whose sum is σ = 28151386704. Its totient is φ = 5361304896.

The previous prime is 13404342209. The next prime is 13404342229. The reversal of 13404342220 is 2224340431.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13404342229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369327 + ... + 403993.

It is an arithmetic number, because the mean of its divisors is an integer number (1172974446).

Almost surely, 213404342220 is an apocalyptic number.

13404342220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13404342220 is an abundant number, since it is smaller than the sum of its proper divisors (14747044484).

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

13404342220 is a wasteful number, since it uses less digits than its factorization.

13404342220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54009 (or 54007 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 13404342220 its reverse (2224340431), we get a palindrome (15628682651).

The spelling of 13404342220 in words is "thirteen billion, four hundred four million, three hundred forty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 19333 34667 38666 69334 77332 96665 138668 173335 193330 346670 386660 693340 670217111 1340434222 2680868444 3351085555 6702171110 13404342220