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30231202012 = 22111993452627
BaseRepresentation
bin11100001001111010…
…111000100011011100
32220000212100011220121
4130021322320203130
5443403141431022
621515451324324
72120104656124
oct341172704334
986025304817
1030231202012
11119037a8580
125a384506a4
132b0a25551b
14166b02dc84
15bbe0982c7
hex709eb88dc

30231202012 has 24 divisors (see below), whose sum is σ = 58004150400. Its totient is φ = 13672398960.

The previous prime is 30231202009. The next prime is 30231202019. The reversal of 30231202012 is 21020213203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231202019) 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, 1717558 + ... + 1735069.

It is an arithmetic number, because the mean of its divisors is an integer number (2416839600).

Almost surely, 230231202012 is an apocalyptic number.

It is an amenable number.

30231202012 is a deficient number, since it is larger than the sum of its proper divisors (27772948388).

30231202012 is a wasteful number, since it uses less digits than its factorization.

30231202012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3452841 (or 3452839 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 30231202012 its reverse (21020213203), we get a palindrome (51251415215).

The spelling of 30231202012 in words is "thirty billion, two hundred thirty-one million, two hundred two thousand, twelve".

Divisors: 1 2 4 11 22 44 199 398 796 2189 4378 8756 3452627 6905254 13810508 37978897 75957794 151915588 687072773 1374145546 2748291092 7557800503 15115601006 30231202012