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13144294285 = 522911479733
BaseRepresentation
bin11000011110111011…
…00000001110001101
31020221001022100000021
430033131200032031
5203404414404120
610012143502141
7643504441453
oct141735401615
936831270007
1013144294285
11563567a931
122669bb7951
131316253835
148c99aa9d3
1551de55aaa
hex30f76038d

13144294285 has 8 divisors (see below), whose sum is σ = 15842032920. Its totient is φ = 10469515584.

The previous prime is 13144294271. The next prime is 13144294327. The reversal of 13144294285 is 58249244131.

13144294285 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 4 ways, for example, as 5700401001 + 7443893284 = 75501^2 + 86278^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13144294285 is a prime.

It is a super-2 number, since 2×131442942852 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 5738722 + ... + 5741011.

It is an arithmetic number, because the mean of its divisors is an integer number (1980254115).

Almost surely, 213144294285 is an apocalyptic number.

It is an amenable number.

13144294285 is a deficient number, since it is larger than the sum of its proper divisors (2697738635).

13144294285 is a wasteful number, since it uses less digits than its factorization.

13144294285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11479967.

The product of its digits is 276480, while the sum is 43.

The spelling of 13144294285 in words is "thirteen billion, one hundred forty-four million, two hundred ninety-four thousand, two hundred eighty-five".

Divisors: 1 5 229 1145 11479733 57398665 2628858857 13144294285