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680551205927 = 2931469745727
BaseRepresentation
bin10011110011101000000…
…00110100110000100111
32102001121210011021212112
421321310000310300213
542122232102042202
61240350234111235
7100111456542665
oct11716400646047
92361553137775
10680551205927
1124269046086a
12aba8b27b51b
134c239035678
1424d20303c35
1512a8191bb52
hex9e74034c27

680551205927 has 8 divisors (see below), whose sum is σ = 704041804800. Its totient is φ = 657062161504.

The previous prime is 680551205921. The next prime is 680551205959. The reversal of 680551205927 is 729502155086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 680551205927 - 214 = 680551189543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680551205921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 539738 + ... + 1285464.

It is an arithmetic number, because the mean of its divisors is an integer number (88005225600).

Almost surely, 2680551205927 is an apocalyptic number.

680551205927 is a deficient number, since it is larger than the sum of its proper divisors (23490598873).

680551205927 is a wasteful number, since it uses less digits than its factorization.

680551205927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777225.

The product of its (nonzero) digits is 1512000, while the sum is 50.

The spelling of 680551205927 in words is "six hundred eighty billion, five hundred fifty-one million, two hundred five thousand, nine hundred twenty-seven".

Divisors: 1 29 31469 745727 912601 21626083 23467282963 680551205927