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680230488 = 23374048991
BaseRepresentation
bin101000100010110…
…111111001011000
31202101222021210210
4220202313321120
52343114333423
6151255411120
722566602160
oct5042677130
91671867723
10680230488
11319a77263
1216b983aa0
13aac09b62
14664ad5a0
153eab9b93
hex288b7e58

680230488 has 32 divisors (see below), whose sum is σ = 1943516160. Its totient is φ = 194351520.

The previous prime is 680230379. The next prime is 680230501. The reversal of 680230488 is 884032086.

680230488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2024328 + ... + 2024663.

It is an arithmetic number, because the mean of its divisors is an integer number (60734880).

Almost surely, 2680230488 is an apocalyptic number.

It is an amenable number.

680230488 is an abundant number, since it is smaller than the sum of its proper divisors (1263285672).

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

680230488 is a wasteful number, since it uses less digits than its factorization.

680230488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4049007 (or 4049003 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 680230488 is about 26081.2286520401. The cubic root of 680230488 is about 879.4652777649.

The spelling of 680230488 in words is "six hundred eighty million, two hundred thirty thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 4048991 8097982 12146973 16195964 24293946 28342937 32391928 48587892 56685874 85028811 97175784 113371748 170057622 226743496 340115244 680230488