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680088002 = 211273137281
BaseRepresentation
bin101000100010010…
…101000111000010
31202101201001100112
4220202111013002
52343100304002
6151252351322
722565436566
oct5042250702
91671631315
10680088002
1131998a200
1216b915542
13aab8a049
14664736a6
153ea8c852
hex288951c2

680088002 has 48 divisors (see below), whose sum is σ = 1149033816. Its totient is φ = 301593600.

The previous prime is 680087999. The next prime is 680088007. The reversal of 680088002 is 200880086.

It can be written as a sum of positive squares in 4 ways, for example, as 646227241 + 33860761 = 25421^2 + 5819^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 680088002.

It is not an unprimeable number, because it can be changed into a prime (680088007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2420102 + ... + 2420382.

Almost surely, 2680088002 is an apocalyptic number.

680088002 is a deficient number, since it is larger than the sum of its proper divisors (468945814).

680088002 is a wasteful number, since it uses less digits than its factorization.

680088002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515 (or 504 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 680088002 is about 26078.4969275455. The cubic root of 680088002 is about 879.4038670899.

It can be divided in two parts, 6 and 80088002, that added together give a palindrome (80088008).

The spelling of 680088002 in words is "six hundred eighty million, eighty-eight thousand, two".

Divisors: 1 2 11 22 73 121 137 146 242 274 281 562 803 1507 1606 3014 3091 6182 8833 10001 16577 17666 20002 20513 33154 34001 38497 41026 68002 76994 110011 220022 225643 423467 451286 846934 1210121 2420242 2482073 2810281 4658137 4964146 5620562 9316274 30913091 61826182 340044001 680088002