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231613230652617 = 31159118959029611
BaseRepresentation
bin110100101010011010101000…
…010101101001110011001001
31010101002000020021102002101210
4310222122220111221303021
5220324222344021340432
62140333352124203333
766533334525220242
oct6452325025516311
91111060207362353
10231613230652617
116788768a616a40
1221b88242399549
139c31059723198
14412a1d6907cc9
151bb9bd1c608cc
hexd2a6a8569cc9

231613230652617 has 16 divisors (see below), whose sum is σ = 342602005282560. Its totient is φ = 137992474347600.

The previous prime is 231613230652561. The next prime is 231613230652663. The reversal of 231613230652617 is 716256032316132.

It is not a de Polignac number, because 231613230652617 - 26 = 231613230652553 is a prime.

It is a super-2 number, since 2×2316132306526172 (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231613230652217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59479512859 + ... + 59479516752.

It is an arithmetic number, because the mean of its divisors is an integer number (21412625330160).

Almost surely, 2231613230652617 is an apocalyptic number.

It is an amenable number.

231613230652617 is a deficient number, since it is larger than the sum of its proper divisors (110988774629943).

231613230652617 is a wasteful number, since it uses less digits than its factorization.

231613230652617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118959029684.

The product of its (nonzero) digits is 1632960, while the sum is 48.

Adding to 231613230652617 its reverse (716256032316132), we get a palindrome (947869262968749).

The spelling of 231613230652617 in words is "two hundred thirty-one trillion, six hundred thirteen billion, two hundred thirty million, six hundred fifty-two thousand, six hundred seventeen".

Divisors: 1 3 11 33 59 177 649 1947 118959029611 356877088833 1308549325721 3925647977163 7018582747049 21055748241147 77204410217539 231613230652617