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680830037910 = 234511194399161
BaseRepresentation
bin10011110100001001010…
…00011110111110010110
32102002100012211102110000
421322010220132332112
542123314442203120
61240434034312130
7100121413560141
oct11720450367626
92362305742400
10680830037910
11242813897420
12abb48728646
134c281a314c9
1424d49367058
1512a9b148990
hex9e84a1ef96

680830037910 has 320 divisors, whose sum is σ = 2107230681600. Its totient is φ = 155989670400.

The previous prime is 680830037887. The next prime is 680830037999. The reversal of 680830037910 is 19730038086.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 74313730 + ... + 74322890.

It is an arithmetic number, because the mean of its divisors is an integer number (6585095880).

Almost surely, 2680830037910 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 680830037910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1053615340800).

680830037910 is an abundant number, since it is smaller than the sum of its proper divisors (1426400643690).

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

680830037910 is a wasteful number, since it uses less digits than its factorization.

680830037910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9649 (or 9640 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 680830037910 in words is "six hundred eighty billion, eight hundred thirty million, thirty-seven thousand, nine hundred ten".