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680038168 = 23295934943
BaseRepresentation
bin101000100010001…
…000111100011000
31202101121111222211
4220202020330120
52343042210133
6151251324504
722565141365
oct5042107430
91671544884
10680038168
11319955817
1216b8b0734
13aab70464
146645d46c
153ea7cbcd
hex28888f18

680038168 has 32 divisors (see below), whose sum is σ = 1321531200. Its totient is φ = 327674368.

The previous prime is 680038153. The next prime is 680038169. The reversal of 680038168 is 861830086.

It is a self number, because there is not a number n which added to its sum of digits gives 680038168.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680038169) 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 7 ways as a sum of consecutive naturals, for example, 135105 + ... + 140047.

It is an arithmetic number, because the mean of its divisors is an integer number (41297850).

Almost surely, 2680038168 is an apocalyptic number.

It is an amenable number.

680038168 is a deficient number, since it is larger than the sum of its proper divisors (641493032).

680038168 is a wasteful number, since it uses less digits than its factorization.

680038168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5571 (or 5567 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 680038168 is about 26077.5414485338. The cubic root of 680038168 is about 879.3823868880.

The spelling of 680038168 in words is "six hundred eighty million, thirty-eight thousand, one hundred sixty-eight".

Divisors: 1 2 4 8 29 58 116 232 593 1186 2372 4744 4943 9886 17197 19772 34394 39544 68788 137576 143347 286694 573388 1146776 2931199 5862398 11724796 23449592 85004771 170009542 340019084 680038168