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680009371 = 2930897591
BaseRepresentation
bin101000100010000…
…001111010011011
31202101120001111021
4220202001322123
52343040244441
6151250543311
722564661416
oct5042017233
91671501437
10680009371
11319936118
1216b897b37
13aab60312
1466452b7d
153ea743d1
hex28881e9b

680009371 has 8 divisors (see below), whose sum is σ = 703778400. Its totient is φ = 656261760.

The previous prime is 680009357. The next prime is 680009383. The reversal of 680009371 is 173900086.

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 680009371 - 25 = 680009339 is a prime.

It is a super-3 number, since 3×6800093713 (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680009321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85786 + ... + 93376.

It is an arithmetic number, because the mean of its divisors is an integer number (87972300).

Almost surely, 2680009371 is an apocalyptic number.

680009371 is a deficient number, since it is larger than the sum of its proper divisors (23769029).

680009371 is a wasteful number, since it uses less digits than its factorization.

680009371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10709.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 680009371 is about 26076.9893009143. The cubic root of 680009371 is about 879.3699738926.

The spelling of 680009371 in words is "six hundred eighty million, nine thousand, three hundred seventy-one".

Divisors: 1 29 3089 7591 89581 220139 23448599 680009371