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680374255 = 51117727673
BaseRepresentation
bin101000100011011…
…010111111101111
31202102020121000111
4220203122333233
52343133434010
6151302440451
722601041261
oct5043327757
91672217014
10680374255
1131a065280
1216ba33127
13aac5a422
1466509b31
153eae758a
hex288dafef

680374255 has 16 divisors (see below), whose sum is σ = 943065504. Its totient is φ = 465710080.

The previous prime is 680374223. The next prime is 680374273. The reversal of 680374255 is 552473086.

It is not a de Polignac number, because 680374255 - 25 = 680374223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 362902 + ... + 364771.

It is an arithmetic number, because the mean of its divisors is an integer number (58941594).

Almost surely, 2680374255 is an apocalyptic number.

680374255 is a deficient number, since it is larger than the sum of its proper divisors (262691249).

680374255 is a wasteful number, since it uses less digits than its factorization.

680374255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727706.

The product of its (nonzero) digits is 201600, while the sum is 40.

The square root of 680374255 is about 26083.9846457553. The cubic root of 680374255 is about 879.5272318526.

The spelling of 680374255 in words is "six hundred eighty million, three hundred seventy-four thousand, two hundred fifty-five".

Divisors: 1 5 11 17 55 85 187 935 727673 3638365 8004403 12370441 40022015 61852205 136074851 680374255