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680361670 = 25611935779
BaseRepresentation
bin101000100011010…
…111111011000110
31202102012221202101
4220203113323012
52343133033140
6151302302314
722600656502
oct5043277306
91672187671
10680361670
1131a05687a
1216ba2799a
13aac54791
1466505302
153eae399a
hex288d7ec6

680361670 has 32 divisors (see below), whose sum is σ = 1251393120. Its totient is φ = 266250240.

The previous prime is 680361653. The next prime is 680361677. The reversal of 680361670 is 76163086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680361677) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114841 + ... + 120619.

It is an arithmetic number, because the mean of its divisors is an integer number (39106035).

Almost surely, 2680361670 is an apocalyptic number.

680361670 is a deficient number, since it is larger than the sum of its proper divisors (571031450).

680361670 is a wasteful number, since it uses less digits than its factorization.

680361670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6040.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 680361670 is about 26083.7434046572. The cubic root of 680361670 is about 879.5218088969.

The spelling of 680361670 in words is "six hundred eighty million, three hundred sixty-one thousand, six hundred seventy".

Divisors: 1 2 5 10 61 122 193 305 386 610 965 1930 5779 11558 11773 23546 28895 57790 58865 117730 352519 705038 1115347 1762595 2230694 3525190 5576735 11153470 68036167 136072334 340180835 680361670