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13318698888 = 23331119312307
BaseRepresentation
bin11000110011101101…
…10011011110001000
31021101012111000011000
430121312303132020
5204234041331023
610041333535000
7651023033625
oct143166633610
937335430130
1013318698888
115715070670
1226b84a4460
131343418921
14904c0934c
1552e406243
hex319db3788

13318698888 has 384 divisors, whose sum is σ = 44041536000. Its totient is φ = 3688156800.

The previous prime is 13318698829. The next prime is 13318698893. The reversal of 13318698888 is 88889681331.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 43383231 + ... + 43383537.

It is an arithmetic number, because the mean of its divisors is an integer number (114691500).

Almost surely, 213318698888 is an apocalyptic number.

13318698888 is a gapful number since it is divisible by the number (18) 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 13318698888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22020768000).

13318698888 is an abundant number, since it is smaller than the sum of its proper divisors (30722837112).

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

13318698888 is a wasteful number, since it uses less digits than its factorization.

13318698888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414 (or 373 counting only the distinct ones).

The product of its digits is 15925248, while the sum is 63.

The spelling of 13318698888 in words is "thirteen billion, three hundred eighteen million, six hundred ninety-eight thousand, eight hundred eighty-eight".