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680068132 = 22170017033
BaseRepresentation
bin101000100010010…
…000010000100100
31202101200001002121
4220202100100210
52343044140012
6151252115324
722565324632
oct5042202044
91671601077
10680068132
11319976287
1216b905b44
13aab80ca3
146646a352
153ea86a07
hex28890424

680068132 has 6 divisors (see below), whose sum is σ = 1190119238. Its totient is φ = 340034064.

The previous prime is 680068093. The next prime is 680068141. The reversal of 680068132 is 231860086.

It can be written as a sum of positive squares in only one way, i.e., 617721316 + 62346816 = 24854^2 + 7896^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85008513 + ... + 85008520.

Almost surely, 2680068132 is an apocalyptic number.

It is an amenable number.

680068132 is a deficient number, since it is larger than the sum of its proper divisors (510051106).

680068132 is a wasteful number, since it uses less digits than its factorization.

680068132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170017037 (or 170017035 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 680068132 is about 26078.1159595551. The cubic root of 680068132 is about 879.3953025488.

The spelling of 680068132 in words is "six hundred eighty million, sixty-eight thousand, one hundred thirty-two".

Divisors: 1 2 4 170017033 340034066 680068132