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12213023230 = 25231731911607
BaseRepresentation
bin10110101111111001…
…11111000111111110
31011112010221212021201
423113330333013332
5200003013220410
65335515250114
7611435661502
oct132774770776
934463855251
1012213023230
1151a7a2a131
12244a14993a
1311c832b785
1483c030302
154b72ed83a
hex2d7f3f1fe

12213023230 has 64 divisors (see below), whose sum is σ = 23207067648. Its totient is φ = 4618599040.

The previous prime is 12213023219. The next prime is 12213023231. The reversal of 12213023230 is 3232031221.

It is a junction number, because it is equal to n+sod(n) for n = 12213023198 and 12213023207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12213023231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7599087 + ... + 7600693.

It is an arithmetic number, because the mean of its divisors is an integer number (362610432).

Almost surely, 212213023230 is an apocalyptic number.

12213023230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12213023230 is a deficient number, since it is larger than the sum of its proper divisors (10994044418).

12213023230 is a wasteful number, since it uses less digits than its factorization.

12213023230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 12213023230 its reverse (3232031221), we get a palindrome (15445054451).

The spelling of 12213023230 in words is "twelve billion, two hundred thirteen million, twenty-three thousand, two hundred thirty".

Divisors: 1 2 5 10 23 46 115 173 191 230 346 382 865 955 1607 1730 1910 3214 3979 4393 7958 8035 8786 16070 19895 21965 33043 36961 39790 43930 66086 73922 165215 184805 278011 306937 330430 369610 556022 613874 759989 1390055 1519978 1534685 2780110 3069370 3799945 6394253 7059551 7599890 12788506 14119102 31971265 35297755 53100101 63942530 70595510 106200202 265500505 531001010 1221302323 2442604646 6106511615 12213023230