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30331112 = 2372323549
BaseRepresentation
bin111001110110…
…1000011101000
32010001222110112
41303231003220
530231043422
63002033452
7515544620
oct163550350
963058415
1030331112
1116137239
12a1a8888
13638c906
144057880
1529e1ee2
hex1ced0e8

30331112 has 32 divisors (see below), whose sum is σ = 67824000. Its totient is φ = 12433344.

The previous prime is 30331109. The next prime is 30331117. The reversal of 30331112 is 21113303.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (30331117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10487 + ... + 13062.

It is an arithmetic number, because the mean of its divisors is an integer number (2119500).

Almost surely, 230331112 is an apocalyptic number.

It is an amenable number.

30331112 is an abundant number, since it is smaller than the sum of its proper divisors (37492888).

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

30331112 is a wasteful number, since it uses less digits than its factorization.

30331112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23585 (or 23581 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 30331112 is about 5507.3688817801. The cubic root of 30331112 is about 311.8622282364.

Adding to 30331112 its reverse (21113303), we get a palindrome (51444415).

The spelling of 30331112 in words is "thirty million, three hundred thirty-one thousand, one hundred twelve".

Divisors: 1 2 4 7 8 14 23 28 46 56 92 161 184 322 644 1288 23549 47098 94196 164843 188392 329686 541627 659372 1083254 1318744 2166508 3791389 4333016 7582778 15165556 30331112