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13155011513 = 71998909861
BaseRepresentation
bin11000100000001100…
…11000101110111001
31020221210110211021122
430100012120232321
5203420140332023
610013205315025
7643664516150
oct142006305671
936853424248
1013155011513
11564072a946
122671705a75
1313185369a7
148cb19a597
1551ed712c8
hex310198bb9

13155011513 has 8 divisors (see below), whose sum is σ = 15825577920. Its totient is φ = 10682264880.

The previous prime is 13155011411. The next prime is 13155011521. The reversal of 13155011513 is 31511055131.

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

It is not a de Polignac number, because 13155011513 - 222 = 13150817209 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 (13155011533) 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, 49454798 + ... + 49455063.

It is an arithmetic number, because the mean of its divisors is an integer number (1978197240).

Almost surely, 213155011513 is an apocalyptic number.

It is an amenable number.

13155011513 is a deficient number, since it is larger than the sum of its proper divisors (2670566407).

13155011513 is an equidigital number, since it uses as much as digits as its factorization.

13155011513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98909887.

The product of its (nonzero) digits is 1125, while the sum is 26.

Adding to 13155011513 its reverse (31511055131), we get a palindrome (44666066644).

The spelling of 13155011513 in words is "thirteen billion, one hundred fifty-five million, eleven thousand, five hundred thirteen".

Divisors: 1 7 19 133 98909861 692369027 1879287359 13155011513