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680550353 = 7112386573
BaseRepresentation
bin101000100100000…
…101111111010001
31202102120112120122
4220210011333101
52343210102403
6151310320025
722602403550
oct5044057721
91672515518
10680550353
1131a17560a
1216bab9015
13aacbc622
1466553d97
153eb2e838
hex28905fd1

680550353 has 8 divisors (see below), whose sum is σ = 778473408. Its totient is φ = 582802704.

The previous prime is 680550331. The next prime is 680550373. The reversal of 680550353 is 353055086.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 680550353 - 210 = 680549329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680550373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35426 + ... + 51147.

It is an arithmetic number, because the mean of its divisors is an integer number (97309176).

Almost surely, 2680550353 is an apocalyptic number.

It is an amenable number.

680550353 is a deficient number, since it is larger than the sum of its proper divisors (97923055).

680550353 is a wasteful number, since it uses less digits than its factorization.

680550353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87703.

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 680550353 is about 26087.3600235823. The cubic root of 680550353 is about 879.6031065763.

The spelling of 680550353 in words is "six hundred eighty million, five hundred fifty thousand, three hundred fifty-three".

Divisors: 1 7 1123 7861 86573 606011 97221479 680550353