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13151684240 = 245164396053
BaseRepresentation
bin11000011111110011…
…01100011010010000
31020221120012210010022
430033321230122100
5203413312343430
610013010123012
7643624320512
oct141771543220
936846183108
1013151684240
115639868032
122670580468
1313179403a6
148ca971bb2
1551e9154e5
hex30fe6c690

13151684240 has 20 divisors (see below), whose sum is σ = 30577666044. Its totient is φ = 5260673664.

The previous prime is 13151684209. The next prime is 13151684251. The reversal of 13151684240 is 4248615131.

13151684240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7258358416 + 5893325824 = 85196^2 + 76768^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 13151684240.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82197947 + ... + 82198106.

Almost surely, 213151684240 is an apocalyptic number.

13151684240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13151684240 is an abundant number, since it is smaller than the sum of its proper divisors (17425981804).

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

13151684240 is a wasteful number, since it uses less digits than its factorization.

13151684240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164396066 (or 164396060 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The spelling of 13151684240 in words is "thirteen billion, one hundred fifty-one million, six hundred eighty-four thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 164396053 328792106 657584212 821980265 1315168424 1643960530 2630336848 3287921060 6575842120 13151684240