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680745003 = 31098872347
BaseRepresentation
bin101000100100110…
…101100000101011
31202102221102120220
4220210311200223
52343232320003
6151314421123
722604144211
oct5044654053
91672842526
10680745003
1131a298884
1216bb917a3
13ab05a0c3
14665a4cb1
153eb6c353
hex2893582b

680745003 has 16 divisors (see below), whose sum is σ = 917410560. Its totient is φ = 448968096.

The previous prime is 680744993. The next prime is 680745029. The reversal of 680745003 is 300547086.

It is not a de Polignac number, because 680745003 - 213 = 680736811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (680745803) 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 15 ways as a sum of consecutive naturals, for example, 288876 + ... + 291222.

It is an arithmetic number, because the mean of its divisors is an integer number (57338160).

Almost surely, 2680745003 is an apocalyptic number.

680745003 is a deficient number, since it is larger than the sum of its proper divisors (236665557).

680745003 is a wasteful number, since it uses less digits than its factorization.

680745003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3346.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 680745003 is about 26091.0904908170. The cubic root of 680745003 is about 879.6869595065.

The spelling of 680745003 in words is "six hundred eighty million, seven hundred forty-five thousand, three".

Divisors: 1 3 109 327 887 2347 2661 7041 96683 255823 290049 767469 2081789 6245367 226915001 680745003