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13223213208 = 2332183655739
BaseRepresentation
bin11000101000010101…
…00011100010011000
31021010112210211102100
430110022203202120
5204040120310313
610024043203400
7645453313002
oct142412434230
937115724370
1013223213208
115676182887
122690516560
1313296c5b1a
148d6271372
15525d44173
hex3142a3898

13223213208 has 24 divisors (see below), whose sum is σ = 35812869300. Its totient is φ = 4407737712.

The previous prime is 13223213183. The next prime is 13223213231. The reversal of 13223213208 is 80231232231.

It is a happy number.

13223213208 is a `hidden beast` number, since 13 + 2 + 2 + 321 + 320 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 91827798 + ... + 91827941.

Almost surely, 213223213208 is an apocalyptic number.

13223213208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13223213208 is an abundant number, since it is smaller than the sum of its proper divisors (22589656092).

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

13223213208 is a wasteful number, since it uses less digits than its factorization.

13223213208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183655751 (or 183655744 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 13223213208 its reverse (80231232231), we get a palindrome (93454445439).

The spelling of 13223213208 in words is "thirteen billion, two hundred twenty-three million, two hundred thirteen thousand, two hundred eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 183655739 367311478 550967217 734622956 1101934434 1469245912 1652901651 2203868868 3305803302 4407737736 6611606604 13223213208