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13118899068 = 223211192341432
BaseRepresentation
bin11000011011111001…
…01000001101111100
31020212021112010022200
430031330220031330
5203331414232233
610005435311500
7643045542102
oct141574501574
936767463280
1013118899068
115622305050
1226615ab590
131310c01792
148c6479c72
1551badb313
hex30df2837c

13118899068 has 432 divisors, whose sum is σ = 41673864960. Its totient is φ = 3432844800.

The previous prime is 13118899063. The next prime is 13118899069. The reversal of 13118899068 is 86099881131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13118899061) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 305090655 + ... + 305090697.

It is an arithmetic number, because the mean of its divisors is an integer number (96467280).

Almost surely, 213118899068 is an apocalyptic number.

13118899068 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 13118899068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20836932480).

13118899068 is an abundant number, since it is smaller than the sum of its proper divisors (28554965892).

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

13118899068 is a wasteful number, since it uses less digits than its factorization.

13118899068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 54.

The spelling of 13118899068 in words is "thirteen billion, one hundred eighteen million, eight hundred ninety-nine thousand, sixty-eight".