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680472602 = 21549219649
BaseRepresentation
bin101000100011110…
…011000000011010
31202102102120220222
4220203303000122
52343200110402
6151304520042
722601631065
oct5043630032
91672376828
10680472602
1131a122157
1216ba80022
13aac93114
14665338dc
153eb167a2
hex288f301a

680472602 has 8 divisors (see below), whose sum is σ = 1021372500. Its totient is φ = 340015104.

The previous prime is 680472601. The next prime is 680472619. The reversal of 680472602 is 206274086.

It can be written as a sum of positive squares in 2 ways, for example, as 636502441 + 43970161 = 25229^2 + 6631^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (680472601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106727 + ... + 112922.

Almost surely, 2680472602 is an apocalyptic number.

680472602 is a deficient number, since it is larger than the sum of its proper divisors (340899898).

680472602 is a wasteful number, since it uses less digits than its factorization.

680472602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221200.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 680472602 is about 26085.8697765668. The cubic root of 680472602 is about 879.5696078913.

The spelling of 680472602 in words is "six hundred eighty million, four hundred seventy-two thousand, six hundred two".

Divisors: 1 2 1549 3098 219649 439298 340236301 680472602