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102431030422 = 2747271574429
BaseRepresentation
bin101111101100101011…
…1010111110010010110
3100210101121001111001111
41133121113113302112
53134234320433142
6115020044245234
710254223251520
oct1373127276226
9323347044044
10102431030422
113a493712256
1217a27b4081a
139875371396
144d59c7aa10
1529e788ee17
hex17d95d7c96

102431030422 has 32 divisors (see below), whose sum is σ = 179994193920. Its totient is φ = 42806374560.

The previous prime is 102431030419. The next prime is 102431030447. The reversal of 102431030422 is 224030134201.

It is a junction number, because it is equal to n+sod(n) for n = 102431030393 and 102431030402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108897 + ... + 465532.

It is an arithmetic number, because the mean of its divisors is an integer number (5624818560).

Almost surely, 2102431030422 is an apocalyptic number.

102431030422 is a deficient number, since it is larger than the sum of its proper divisors (77563163498).

102431030422 is a wasteful number, since it uses less digits than its factorization.

102431030422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574756.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 102431030422 its reverse (224030134201), we get a palindrome (326461164623).

The spelling of 102431030422 in words is "one hundred two billion, four hundred thirty-one million, thirty thousand, four hundred twenty-two".

Divisors: 1 2 7 14 47 94 271 329 542 658 1897 3794 12737 25474 89159 178318 574429 1148858 4021003 8042006 26998163 53996326 155670259 188987141 311340518 377974282 1089691813 2179383626 7316502173 14633004346 51215515211 102431030422