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30132212012 = 2272115100239
BaseRepresentation
bin11100000100000001…
…010001000100101100
32212202222001222011022
4130010001101010230
5443202321241022
621501553513312
72114463401420
oct340401210454
985688058138
1030132212012
1111862936961
125a0b272838
132ac28a6666
14165bc22b80
15bb5542c42
hex70405112c

30132212012 has 24 divisors (see below), whose sum is σ = 60550049280. Its totient is φ = 12852599760.

The previous prime is 30132211987. The next prime is 30132212053. The reversal of 30132212012 is 21021223103.

It is a super-2 number, since 2×301322120122 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2544212 + ... + 2556027.

It is an arithmetic number, because the mean of its divisors is an integer number (2522918720).

Almost surely, 230132212012 is an apocalyptic number.

It is an amenable number.

30132212012 is an abundant number, since it is smaller than the sum of its proper divisors (30417837268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30132212012 is a wasteful number, since it uses less digits than its factorization.

30132212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5100461 (or 5100459 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 30132212012 its reverse (21021223103), we get a palindrome (51153435115).

The spelling of 30132212012 in words is "thirty billion, one hundred thirty-two million, two hundred twelve thousand, twelve".

Divisors: 1 2 4 7 14 28 211 422 844 1477 2954 5908 5100239 10200478 20400956 35701673 71403346 142806692 1076150429 2152300858 4304601716 7533053003 15066106006 30132212012