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680461368 = 23328352557
BaseRepresentation
bin101000100011110…
…000010000111000
31202102102000111220
4220203300100320
52343144230433
6151304352040
722601553246
oct5043602070
91672360456
10680461368
1131a114774
1216ba75620
13aac8ac82
146652d796
153eb132b3
hex288f0438

680461368 has 16 divisors (see below), whose sum is σ = 1701153480. Its totient is φ = 226820448.

The previous prime is 680461367. The next prime is 680461387. The reversal of 680461368 is 863164086.

It is a happy number.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680461361) 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 3 ways as a sum of consecutive naturals, for example, 14176255 + ... + 14176302.

Almost surely, 2680461368 is an apocalyptic number.

It is an amenable number.

680461368 is an abundant number, since it is smaller than the sum of its proper divisors (1020692112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

680461368 is a wasteful number, since it uses less digits than its factorization.

680461368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28352566 (or 28352562 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 680461368 is about 26085.6544483745. The cubic root of 680461368 is about 879.5647675596.

The spelling of 680461368 in words is "six hundred eighty million, four hundred sixty-one thousand, three hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 24 28352557 56705114 85057671 113410228 170115342 226820456 340230684 680461368