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13001516805 = 3571118110337
BaseRepresentation
bin11000001101111001…
…10110011100000101
31020120002122111010110
430012330312130011
5203111342014210
65550043343233
7640122032544
oct140674663405
936502574113
1013001516805
115572021012
12262a221b19
1312c27b3214
148b4a4215b
15511651420
hex306f36705

13001516805 has 32 divisors (see below), whose sum is σ = 21115323648. Its totient is φ = 6830028800.

The previous prime is 13001516767. The next prime is 13001516807. The reversal of 13001516805 is 50861510031.

13001516805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13001516805 - 26 = 13001516741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13001516807) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1252597 + ... + 1262933.

It is an arithmetic number, because the mean of its divisors is an integer number (659853864).

Almost surely, 213001516805 is an apocalyptic number.

13001516805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13001516805 is a deficient number, since it is larger than the sum of its proper divisors (8113806843).

13001516805 is a wasteful number, since it uses less digits than its factorization.

13001516805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11597.

The product of its (nonzero) digits is 3600, while the sum is 30.

The spelling of 13001516805 in words is "thirteen billion, one million, five hundred sixteen thousand, eight hundred five".

Divisors: 1 3 5 15 71 213 355 1065 1181 3543 5905 10337 17715 31011 51685 83851 155055 251553 419255 733927 1257765 2201781 3669635 11008905 12207997 36623991 61039985 183119955 866767787 2600303361 4333838935 13001516805