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680362939 = 2923460791
BaseRepresentation
bin101000100011011…
…000001110111011
31202102020000111101
4220203120032323
52343133103224
6151302312231
722600663264
oct5043301673
91672200441
10680362939
1131a057823
1216ba28677
13aac55229
146650596b
153eae4044
hex288d83bb

680362939 has 4 divisors (see below), whose sum is σ = 703823760. Its totient is φ = 656902120.

The previous prime is 680362927. The next prime is 680363009. The reversal of 680362939 is 939263086.

It is a happy number.

680362939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 939263086 = 2469631543.

It is a cyclic number.

It is not a de Polignac number, because 680362939 - 29 = 680362427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680362439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11730367 + ... + 11730424.

It is an arithmetic number, because the mean of its divisors is an integer number (175955940).

Almost surely, 2680362939 is an apocalyptic number.

680362939 is a deficient number, since it is larger than the sum of its proper divisors (23460821).

680362939 is a wasteful number, since it uses less digits than its factorization.

680362939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23460820.

The product of its (nonzero) digits is 419904, while the sum is 46.

The square root of 680362939 is about 26083.7677301421. The cubic root of 680362939 is about 879.5223557200.

The spelling of 680362939 in words is "six hundred eighty million, three hundred sixty-two thousand, nine hundred thirty-nine".

Divisors: 1 29 23460791 680362939