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680880001 = 3159372269
BaseRepresentation
bin101000100101010…
…110011110000001
31202110012021202211
4220211112132001
52343301130001
6151321342121
722605245614
oct5045263601
91673167684
10680880001
1131a38024a
12170037941
13ab0a6699
14665dc17b
153eb97351
hex28956781

680880001 has 8 divisors (see below), whose sum is σ = 714758400. Its totient is φ = 647746320.

The previous prime is 680879981. The next prime is 680880019. The reversal of 680880001 is 100088086.

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 680880001 - 221 = 678782849 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680880041) 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, 184306 + ... + 187963.

It is an arithmetic number, because the mean of its divisors is an integer number (89344800).

Almost surely, 2680880001 is an apocalyptic number.

It is an amenable number.

680880001 is a deficient number, since it is larger than the sum of its proper divisors (33878399).

680880001 is a wasteful number, since it uses less digits than its factorization.

680880001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372359.

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 680880001 is about 26093.6774142703. The cubic root of 680880001 is about 879.7451056701.

The spelling of 680880001 in words is "six hundred eighty million, eight hundred eighty thousand, one".

Divisors: 1 31 59 1829 372269 11540339 21963871 680880001