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12345788888 = 234021383791
BaseRepresentation
bin10110111111101110…
…11100100111011000
31011212101210001112022
423133313130213120
5200241010221023
65401021034012
7614640321416
oct133767344730
934771701468
1012345788888
11526596aa14
1224866b5908
1312199a5034
148519102b6
154c3cc67c8
hex2dfddc9d8

12345788888 has 16 divisors (see below), whose sum is σ = 23154171360. Its totient is φ = 6171343200.

The previous prime is 12345788879. The next prime is 12345788891. The reversal of 12345788888 is 88888754321.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 12345788888.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159728 + ... + 224063.

It is an arithmetic number, because the mean of its divisors is an integer number (1447135710).

Almost surely, 212345788888 is an apocalyptic number.

It is an amenable number.

12345788888 is a deficient number, since it is larger than the sum of its proper divisors (10808382472).

12345788888 is a wasteful number, since it uses less digits than its factorization.

12345788888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387818 (or 387814 counting only the distinct ones).

The product of its digits is 27525120, while the sum is 62.

The spelling of 12345788888 in words is "twelve billion, three hundred forty-five million, seven hundred eighty-eight thousand, eight hundred eighty-eight".

Divisors: 1 2 4 8 4021 8042 16084 32168 383791 767582 1535164 3070328 1543223611 3086447222 6172894444 12345788888