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31233032230 = 2517195194169
BaseRepresentation
bin11101000101101000…
…100100000000100110
32222121200110102121111
4131011220210000212
51002431124012410
622203120135234
72153661252001
oct350550440046
988550412544
1031233032230
1112278261434
126077a6751a
132c3998377a
1417240d6538
15c2bedbb8a
hex745a24026

31233032230 has 32 divisors (see below), whose sum is σ = 59557628160. Its totient is φ = 11752166400.

The previous prime is 31233032203. The next prime is 31233032249. The reversal of 31233032230 is 3223033213.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 284586 + ... + 378754.

It is an arithmetic number, because the mean of its divisors is an integer number (1861175880).

Almost surely, 231233032230 is an apocalyptic number.

31233032230 is a deficient number, since it is larger than the sum of its proper divisors (28324595930).

31233032230 is a wasteful number, since it uses less digits than its factorization.

31233032230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96144.

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 31233032230 its reverse (3223033213), we get a palindrome (34456065443).

The spelling of 31233032230 in words is "thirty-one billion, two hundred thirty-three million, thirty-two thousand, two hundred thirty".

Divisors: 1 2 5 10 17 34 85 170 1951 3902 9755 19510 33167 66334 94169 165835 188338 331670 470845 941690 1600873 3201746 8004365 16008730 183723719 367447438 918618595 1837237190 3123303223 6246606446 15616516115 31233032230