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680206246 = 2340103123
BaseRepresentation
bin101000100010110…
…001111110100110
31202101221001112221
4220202301332212
52343113044441
6151255102554
722566441406
oct5042617646
91671831487
10680206246
11319a60025
1216b971a5a
13aabcbb05
14664a4806
153eab28d1
hex288b1fa6

680206246 has 4 divisors (see below), whose sum is σ = 1020309372. Its totient is φ = 340103122.

The previous prime is 680206243. The next prime is 680206253. The reversal of 680206246 is 642602086.

680206246 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680206243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170051560 + ... + 170051563.

It is an arithmetic number, because the mean of its divisors is an integer number (255077343).

Almost surely, 2680206246 is an apocalyptic number.

680206246 is a deficient number, since it is larger than the sum of its proper divisors (340103126).

680206246 is a wasteful number, since it uses less digits than its factorization.

680206246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340103125.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 680206246 is about 26080.7639075239. The cubic root of 680206246 is about 879.4548302029.

The spelling of 680206246 in words is "six hundred eighty million, two hundred six thousand, two hundred forty-six".

Divisors: 1 2 340103123 680206246