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680075055 = 335112173179
BaseRepresentation
bin101000100010010…
…001111100101111
31202101200101121000
4220202101330233
52343044400210
6151252211343
722565354052
oct5042217457
91671611530
10680075055
11319980500
1216b909b53
13aab8419a
146646ca99
153ea88ac0
hex28891f2f

680075055 has 192 divisors, whose sum is σ = 1470873600. Its totient is φ = 296524800.

The previous prime is 680075029. The next prime is 680075069. The reversal of 680075055 is 550570086.

680075055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 680075055 - 212 = 680070959 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 8608506 + ... + 8608584.

It is an arithmetic number, because the mean of its divisors is an integer number (7660800).

Almost surely, 2680075055 is an apocalyptic number.

680075055 is an abundant number, since it is smaller than the sum of its proper divisors (790798545).

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

680075055 is a wasteful number, since it uses less digits than its factorization.

680075055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The square root of 680075055 is about 26078.2486950332. The cubic root of 680075055 is about 879.3982865797.

The spelling of 680075055 in words is "six hundred eighty million, seventy-five thousand, fifty-five".