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12102205344 = 25317192771409
BaseRepresentation
bin10110100010101100…
…01111111110100000
31011020102102201201120
423101112033332200
5144241131032334
65320520132240
7605622022335
oct132126177640
934212381646
1012102205344
115150419aa9
122419007080
1311ab39b068
1482b42498c
154ac70d949
hex2d158ffa0

12102205344 has 192 divisors, whose sum is σ = 35560425600. Its totient is φ = 3581411328.

The previous prime is 12102205337. The next prime is 12102205369. The reversal of 12102205344 is 44350220121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8588512 + ... + 8589920.

It is an arithmetic number, because the mean of its divisors is an integer number (185210550).

Almost surely, 212102205344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12102205344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17780212800).

12102205344 is an abundant number, since it is smaller than the sum of its proper divisors (23458220256).

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

12102205344 is a wasteful number, since it uses less digits than its factorization.

12102205344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1735 (or 1727 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 12102205344 its reverse (44350220121), we get a palindrome (56452425465).

The spelling of 12102205344 in words is "twelve billion, one hundred two million, two hundred five thousand, three hundred forty-four".