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231020232230 = 2547491532409
BaseRepresentation
bin1101011100100111100…
…0001111111000100110
3211002022012022202101102
43113021320033320212
512241112134412410
6254043525200102
722455616400564
oct3271170177046
9732265282342
10231020232230
1189a7a997867
1238934260032
1318a28b86488
14b277c22a34
1560219292a5
hex35c9e0fe26

231020232230 has 16 divisors (see below), whose sum is σ = 424684002240. Its totient is φ = 90441963072.

The previous prime is 231020232173. The next prime is 231020232347. The reversal of 231020232230 is 32232020132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245765735 + ... + 245766674.

It is an arithmetic number, because the mean of its divisors is an integer number (26542750140).

Almost surely, 2231020232230 is an apocalyptic number.

231020232230 is a deficient number, since it is larger than the sum of its proper divisors (193663770010).

231020232230 is a wasteful number, since it uses less digits than its factorization.

231020232230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491532463.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 231020232230 its reverse (32232020132), we get a palindrome (263252252362).

It can be divided in two parts, 2310202 and 32230, that added together give a palindrome (2342432).

The spelling of 231020232230 in words is "two hundred thirty-one billion, twenty million, two hundred thirty-two thousand, two hundred thirty".

Divisors: 1 2 5 10 47 94 235 470 491532409 983064818 2457662045 4915324090 23102023223 46204046446 115510116115 231020232230