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13011024221 = 132491156799
BaseRepresentation
bin11000001111000010…
…00111100101011101
31020120202112111211222
430013201013211131
5203121310233341
65551023223125
7640265611136
oct140741074535
936522474758
1013011024221
115577425088
122631447aa5
1312c4761800
148b5dd8c8d
155123cd44b
hex30784795d

13011024221 has 12 divisors (see below), whose sum is σ = 14117644800. Its totient is φ = 11985639120.

The previous prime is 13011024181. The next prime is 13011024227. The reversal of 13011024221 is 12242011031.

13011024221 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 13011024221 - 26 = 13011024157 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 13011024221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13011024227) 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 11 ways as a sum of consecutive naturals, for example, 4580 + ... + 161378.

It is an arithmetic number, because the mean of its divisors is an integer number (1176470400).

Almost surely, 213011024221 is an apocalyptic number.

It is an amenable number.

13011024221 is a deficient number, since it is larger than the sum of its proper divisors (1106620579).

13011024221 is a wasteful number, since it uses less digits than its factorization.

13011024221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157316 (or 157303 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 13011024221 its reverse (12242011031), we get a palindrome (25253035252).

The spelling of 13011024221 in words is "thirteen billion, eleven million, twenty-four thousand, two hundred twenty-one".

Divisors: 1 13 169 491 6383 82979 156799 2038387 26499031 76988309 1000848017 13011024221