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13500551305 = 531372354063
BaseRepresentation
bin11001001001011001…
…00001000010001001
31021211212200001202201
430210230201002021
5210122120120210
610111351400201
7655361535613
oct144454410211
937755601681
1013500551305
1157a878901a
122749383061
131371cba9c7
14921025db3
1554037853a
hex324b21089

13500551305 has 16 divisors (see below), whose sum is σ = 17175250944. Its totient is φ = 10169547840.

The previous prime is 13500551297. The next prime is 13500551333. The reversal of 13500551305 is 50315500531.

It is not a de Polignac number, because 13500551305 - 23 = 13500551297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1171297 + ... + 1182766.

It is an arithmetic number, because the mean of its divisors is an integer number (1073453184).

Almost surely, 213500551305 is an apocalyptic number.

It is an amenable number.

13500551305 is a deficient number, since it is larger than the sum of its proper divisors (3674699639).

13500551305 is a wasteful number, since it uses less digits than its factorization.

13500551305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2354136.

The product of its (nonzero) digits is 5625, while the sum is 28.

The spelling of 13500551305 in words is "thirteen billion, five hundred million, five hundred fifty-one thousand, three hundred five".

Divisors: 1 5 31 37 155 185 1147 5735 2354063 11770315 72975953 87100331 364879765 435501655 2700110261 13500551305