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13221012133 = 710391817821
BaseRepresentation
bin11000101000000100…
…01010001010100101
31021010101200000010001
430110002022022211
5204034034342013
610023524101301
7645425514610
oct142402121245
937111600101
1013221012133
115674a0a10a
12268b834831
131329105004
148d5c5b177
15525a5bddd
hex31408a2a5

13221012133 has 8 divisors (see below), whose sum is σ = 15124279040. Its totient is φ = 11321382960.

The previous prime is 13221012121. The next prime is 13221012143. The reversal of 13221012133 is 33121012231.

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

It is a cyclic number.

It is not a de Polignac number, because 13221012133 - 29 = 13221011621 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13221012133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221012143) 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, 901638 + ... + 916183.

It is an arithmetic number, because the mean of its divisors is an integer number (1890534880).

Almost surely, 213221012133 is an apocalyptic number.

It is an amenable number.

13221012133 is a deficient number, since it is larger than the sum of its proper divisors (1903266907).

13221012133 is a wasteful number, since it uses less digits than its factorization.

13221012133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1818867.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 13221012133 its reverse (33121012231), we get a palindrome (46342024364).

The spelling of 13221012133 in words is "thirteen billion, two hundred twenty-one million, twelve thousand, one hundred thirty-three".

Divisors: 1 7 1039 7273 1817821 12724747 1888716019 13221012133