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680601120212 = 221313088483081
BaseRepresentation
bin10011110011101101111…
…11001110110111010100
32102001202021002012101202
421321312333032313110
542122332341321322
61240355220012032
7100112634032456
oct11716677166724
92361667065352
10680601120212
11242706653142
12abaa3b31018
134c246490a50
1424d26bb82d6
1512a85ecb292
hex9e76fcedd4

680601120212 has 12 divisors (see below), whose sum is σ = 1282671342036. Its totient is φ = 314123593920.

The previous prime is 680601120209. The next prime is 680601120223. The reversal of 680601120212 is 212021106086.

It can be written as a sum of positive squares in 2 ways, for example, as 39650367376 + 640950752836 = 199124^2 + 800594^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6544241489 + ... + 6544241592.

It is an arithmetic number, because the mean of its divisors is an integer number (106889278503).

Almost surely, 2680601120212 is an apocalyptic number.

It is an amenable number.

680601120212 is a deficient number, since it is larger than the sum of its proper divisors (602070221824).

680601120212 is a wasteful number, since it uses less digits than its factorization.

680601120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13088483098 (or 13088483096 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

Adding to 680601120212 its reverse (212021106086), we get a palindrome (892622226298).

The spelling of 680601120212 in words is "six hundred eighty billion, six hundred one million, one hundred twenty thousand, two hundred twelve".

Divisors: 1 2 4 13 26 52 13088483081 26176966162 52353932324 170150280053 340300560106 680601120212