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13387637513 = 171914123079
BaseRepresentation
bin11000111011111011…
…10010001100001001
31021120000012110011102
430131331302030021
5204404213400023
610052235311145
7652521020105
oct143575621411
937500173142
1013387637513
11574aa77238
1227175ab4b5
1313547a5303
14910032905
155354c2628
hex31df72309

13387637513 has 8 divisors (see below), whose sum is σ = 14249364480. Its totient is φ = 12534157120.

The previous prime is 13387637507. The next prime is 13387637569. The reversal of 13387637513 is 31573678331.

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

It is not a de Polignac number, because 13387637513 - 28 = 13387637257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13387637503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2058293 + ... + 2064786.

It is an arithmetic number, because the mean of its divisors is an integer number (1781170560).

Almost surely, 213387637513 is an apocalyptic number.

It is an amenable number.

13387637513 is a deficient number, since it is larger than the sum of its proper divisors (861726967).

13387637513 is a wasteful number, since it uses less digits than its factorization.

13387637513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4123287.

The product of its digits is 952560, while the sum is 47.

The spelling of 13387637513 in words is "thirteen billion, three hundred eighty-seven million, six hundred thirty-seven thousand, five hundred thirteen".

Divisors: 1 17 191 3247 4123079 70092343 787508089 13387637513