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13066032081 = 3191731325021
BaseRepresentation
bin11000010101100101…
…11101001111010001
31020201121001012110010
430022302331033101
5203224401011311
610000310225133
7641534303664
oct141262751721
936647035403
1013066032081
1155a5486323
1226479551a9
131302c8143b
148bd4376db
15517146da6
hex30acbd3d1

13066032081 has 16 divisors (see below), whose sum is σ = 18444306240. Its totient is φ = 8204523840.

The previous prime is 13066032079. The next prime is 13066032181. The reversal of 13066032081 is 18023066031.

It is not a de Polignac number, because 13066032081 - 21 = 13066032079 is a prime.

It is a super-2 number, since 2×130660320812 (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13066032181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 652650 + ... + 672371.

It is an arithmetic number, because the mean of its divisors is an integer number (1152769140).

Almost surely, 213066032081 is an apocalyptic number.

It is an amenable number.

13066032081 is a deficient number, since it is larger than the sum of its proper divisors (5378274159).

13066032081 is a wasteful number, since it uses less digits than its factorization.

13066032081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325216.

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

The spelling of 13066032081 in words is "thirteen billion, sixty-six million, thirty-two thousand, eighty-one".

Divisors: 1 3 19 57 173 519 3287 9861 1325021 3975063 25175399 75526197 229228633 687685899 4355344027 13066032081