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12012033230 = 2517431643233
BaseRepresentation
bin10110010111111100…
…10001010011001110
31011000010202111211122
423023332101103032
5144100040030410
65303535320542
7603445412021
oct131376212316
934003674748
1012012033230
11510453039a
1223b2980152
1311957b8992
1481d4711b8
154a484ae55
hex2cbf914ce

12012033230 has 32 divisors (see below), whose sum is σ = 23425943904. Its totient is φ = 4417007616.

The previous prime is 12012033223. The next prime is 12012033259. The reversal of 12012033230 is 3233021021.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12012033199 and 12012033208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 814307 + ... + 828926.

It is an arithmetic number, because the mean of its divisors is an integer number (732060747).

Almost surely, 212012033230 is an apocalyptic number.

12012033230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12012033230 is a deficient number, since it is larger than the sum of its proper divisors (11413910674).

12012033230 is a wasteful number, since it uses less digits than its factorization.

12012033230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1643300.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 12012033230 its reverse (3233021021), we get a palindrome (15245054251).

The spelling of 12012033230 in words is "twelve billion, twelve million, thirty-three thousand, two hundred thirty".

Divisors: 1 2 5 10 17 34 43 85 86 170 215 430 731 1462 3655 7310 1643233 3286466 8216165 16432330 27934961 55869922 70659019 139674805 141318038 279349610 353295095 706590190 1201203323 2402406646 6006016615 12012033230