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680351862774 = 23827137112427
BaseRepresentation
bin10011110011010000010…
…00011000111111110110
32102001002220001121110210
421321220020120333312
542121330034102044
61240314353330250
7100103516262423
oct11715010307766
92361086047423
10680351862774
11242598987361
12aba34566986
134c20694b33c
1424d01a52d4a
1512a6e1921b9
hex9e68218ff6

680351862774 has 16 divisors (see below), whose sum is σ = 1362349084608. Its totient is φ = 226509727752.

The previous prime is 680351862739. The next prime is 680351862811. The reversal of 680351862774 is 477268153086.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68551252 + ... + 68561175.

It is an arithmetic number, because the mean of its divisors is an integer number (85146817788).

Almost surely, 2680351862774 is an apocalyptic number.

680351862774 is an abundant number, since it is smaller than the sum of its proper divisors (681997221834).

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

680351862774 is a wasteful number, since it uses less digits than its factorization.

680351862774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137113259.

The product of its (nonzero) digits is 13547520, while the sum is 57.

The spelling of 680351862774 in words is "six hundred eighty billion, three hundred fifty-one million, eight hundred sixty-two thousand, seven hundred seventy-four".

Divisors: 1 2 3 6 827 1654 2481 4962 137112427 274224854 411337281 822674562 113391977129 226783954258 340175931387 680351862774