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30231301131 = 3223473107339
BaseRepresentation
bin11100001001111011…
…010000110000001011
32220000212112012212200
4130021323100300023
5443403203114011
621515453411243
72120105551113
oct341173206013
986025465780
1030231301131
1111903865a99
125a38499b23
132b0a28b685
14166b058043
15bbe0b7856
hex709ed0c0b

30231301131 has 24 divisors (see below), whose sum is σ = 46535523840. Its totient is φ = 18867756336.

The previous prime is 30231301123. The next prime is 30231301151. The reversal of 30231301131 is 13110313203.

It is a happy number.

30231301131 is a `hidden beast` number, since 3 + 0 + 231 + 301 + 131 = 666.

It is not a de Polignac number, because 30231301131 - 23 = 30231301123 is a prime.

It is a super-2 number, since 2×302313011312 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30231301151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1543941 + ... + 1563398.

It is an arithmetic number, because the mean of its divisors is an integer number (1938980160).

Almost surely, 230231301131 is an apocalyptic number.

30231301131 is a deficient number, since it is larger than the sum of its proper divisors (16304222709).

30231301131 is a wasteful number, since it uses less digits than its factorization.

30231301131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3107415 (or 3107412 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 30231301131 its reverse (13110313203), we get a palindrome (43341614334).

The spelling of 30231301131 in words is "thirty billion, two hundred thirty-one million, three hundred one thousand, one hundred thirty-one".

Divisors: 1 3 9 23 47 69 141 207 423 1081 3243 9729 3107339 9322017 27966051 71468797 146044933 214406391 438134799 643219173 1314404397 3359033459 10077100377 30231301131