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13260030861 = 3711311851701
BaseRepresentation
bin11000101100101110…
…00000001110001101
31021020010002100202010
430112113000032031
5204124031441421
610031440251433
7646411255050
oct142627001615
937203070663
1013260030861
115694a3a4a0
1226a0910b79
13133421700c
148db0d6a97
155291b8076
hex3165c038d

13260030861 has 32 divisors (see below), whose sum is σ = 22753714176. Its totient is φ = 6666120000.

The previous prime is 13260030851. The next prime is 13260030877. The reversal of 13260030861 is 16803006231.

It is not a de Polignac number, because 13260030861 - 25 = 13260030829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13260030811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 918690 + ... + 933011.

It is an arithmetic number, because the mean of its divisors is an integer number (711053568).

Almost surely, 213260030861 is an apocalyptic number.

13260030861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13260030861 is a deficient number, since it is larger than the sum of its proper divisors (9493683315).

13260030861 is a wasteful number, since it uses less digits than its factorization.

13260030861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851753.

The product of its (nonzero) digits is 5184, while the sum is 30.

The spelling of 13260030861 in words is "thirteen billion, two hundred sixty million, thirty thousand, eight hundred sixty-one".

Divisors: 1 3 7 11 21 31 33 77 93 217 231 341 651 1023 2387 7161 1851701 5555103 12961907 20368711 38885721 57402731 61106133 142580977 172208193 401819117 427742931 631430041 1205457351 1894290123 4420010287 13260030861