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30112300212 = 22323127985303
BaseRepresentation
bin11100000010110101…
…010011110010110100
32212201120121100022020
4130002311103302310
5443132222101322
621500003033140
72114132220501
oct340265236264
985646540266
1030112300212
1111852676925
125a0466b7b0
132abb724427
14165931c4a8
15bb390d05c
hex702d53cb4

30112300212 has 48 divisors (see below), whose sum is σ = 73375088640. Its totient is φ = 9593404128.

The previous prime is 30112300201. The next prime is 30112300217. The reversal of 30112300212 is 21200321103.

It is a junction number, because it is equal to n+sod(n) for n = 30112300191 and 30112300200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30112300217) 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 15 ways as a sum of consecutive naturals, for example, 310353 + ... + 395655.

It is an arithmetic number, because the mean of its divisors is an integer number (1528647680).

Almost surely, 230112300212 is an apocalyptic number.

It is an amenable number.

30112300212 is an abundant number, since it is smaller than the sum of its proper divisors (43262788428).

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

30112300212 is a wasteful number, since it uses less digits than its factorization.

30112300212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86612 (or 86610 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 30112300212 its reverse (21200321103), we get a palindrome (51312621315).

The spelling of 30112300212 in words is "thirty billion, one hundred twelve million, three hundred thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 1279 2558 3837 5116 7674 15348 29417 58834 85303 88251 117668 170606 176502 255909 341212 353004 511818 1023636 1961969 3923938 5885907 7847876 11771814 23543628 109102537 218205074 327307611 436410148 654615222 1309230444 2509358351 5018716702 7528075053 10037433404 15056150106 30112300212