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13771377306 = 2321752186381
BaseRepresentation
bin11001101001101011…
…01000101010011010
31022112202021110012100
430310311220222122
5211200433033211
610154304224230
7665160530031
oct146465505232
938482243170
1013771377306
115927646665
12280400b076
1313b614278b
14948da3718
15559023156
hex334d68a9a

13771377306 has 48 divisors (see below), whose sum is σ = 31654165608. Its totient is φ = 4312089600.

The previous prime is 13771377281. The next prime is 13771377311. The reversal of 13771377306 is 60377317731.

13771377306 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 11665944081 + 2105433225 = 108009^2 + 45885^2 .

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 23 ways as a sum of consecutive naturals, for example, 116236 + ... + 202616.

Almost surely, 213771377306 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13771377306, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15827082804).

13771377306 is an abundant number, since it is smaller than the sum of its proper divisors (17882788302).

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

13771377306 is a wasteful number, since it uses less digits than its factorization.

13771377306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86927 (or 86924 counting only the distinct ones).

The product of its (nonzero) digits is 388962, while the sum is 45.

The spelling of 13771377306 in words is "thirteen billion, seven hundred seventy-one million, three hundred seventy-seven thousand, three hundred six".

Divisors: 1 2 3 6 9 17 18 34 51 102 153 306 521 1042 1563 3126 4689 8857 9378 17714 26571 53142 79713 86381 159426 172762 259143 518286 777429 1468477 1554858 2936954 4405431 8810862 13216293 26432586 45004501 90009002 135013503 270027006 405040509 765076517 810081018 1530153034 2295229551 4590459102 6885688653 13771377306