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680158775 = 52267710163
BaseRepresentation
bin101000100010100…
…110011000110111
31202101211122102202
4220202212120313
52343110040100
6151254055115
722566153122
oct5042463067
91671748382
10680158775
11319a2839a
1216b94a49b
13aabb331a
14664913b9
153eaa37d5
hex288a6637

680158775 has 12 divisors (see below), whose sum is σ = 843794952. Its totient is φ = 543870240.

The previous prime is 680158757. The next prime is 680158793. The reversal of 680158775 is 577851086.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (680158757) and next prime (680158793).

It is not a de Polignac number, because 680158775 - 28 = 680158519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61844 + ... + 72006.

It is an arithmetic number, because the mean of its divisors is an integer number (70316246).

Almost surely, 2680158775 is an apocalyptic number.

680158775 is a deficient number, since it is larger than the sum of its proper divisors (163636177).

680158775 is a wasteful number, since it uses less digits than its factorization.

680158775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12850 (or 12845 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 47.

The square root of 680158775 is about 26079.8538147743. The cubic root of 680158775 is about 879.4343709320.

The spelling of 680158775 in words is "six hundred eighty million, one hundred fifty-eight thousand, seven hundred seventy-five".

Divisors: 1 5 25 2677 10163 13385 50815 66925 254075 27206351 136031755 680158775