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680246580 = 2235134189239
BaseRepresentation
bin101000100010111…
…011110100110100
31202102000002212210
4220202323310310
52343120342310
6151300013420
722600000116
oct5042736464
91672002783
10680246580
11319a88362
1216b991270
13aac14290
14664b53b6
153eabe820
hex288bbd34

680246580 has 192 divisors, whose sum is σ = 2133734400. Its totient is φ = 160849920.

The previous prime is 680246543. The next prime is 680246599. The reversal of 680246580 is 85642086.

680246580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2846101 + ... + 2846339.

It is an arithmetic number, because the mean of its divisors is an integer number (11113200).

Almost surely, 2680246580 is an apocalyptic number.

680246580 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 680246580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1066867200).

680246580 is an abundant number, since it is smaller than the sum of its proper divisors (1453487820).

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

680246580 is a wasteful number, since it uses less digits than its factorization.

680246580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394 (or 392 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 680246580 is about 26081.5371479520. The cubic root of 680246580 is about 879.4722127886.

The spelling of 680246580 in words is "six hundred eighty million, two hundred forty-six thousand, five hundred eighty".