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680752512 = 27341147127
BaseRepresentation
bin101000100100110…
…111010110000000
31202102221210220000
4220210313112000
52343233040022
6151314520000
722604205126
oct5044672600
91672853800
10680752512
1131a2a3490
1216bb96000
13ab06064b
14665a7916
153eb6e6ac
hex28937580

680752512 has 320 divisors, whose sum is σ = 2274877440. Its totient is φ = 200309760.

The previous prime is 680752489. The next prime is 680752517. The reversal of 680752512 is 215257086.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680752517) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5360193 + ... + 5360319.

It is an arithmetic number, because the mean of its divisors is an integer number (7108992).

Almost surely, 2680752512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 680752512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1137438720).

680752512 is an abundant number, since it is smaller than the sum of its proper divisors (1594124928).

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

680752512 is a wasteful number, since it uses less digits than its factorization.

680752512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 680752512 is about 26091.2343901165. The cubic root of 680752512 is about 879.6901939752.

It can be divided in two parts, 6807 and 52512, that added together give a cube (59319 = 393).

The spelling of 680752512 in words is "six hundred eighty million, seven hundred fifty-two thousand, five hundred twelve".