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680838599 = 7239940543
BaseRepresentation
bin101000100101001…
…100010111000111
31202110010011222102
4220211030113013
52343243313344
6151320422315
722605014120
oct5045142707
91673104872
10680838599
1131a352131
1217001799b
13ab09089c
14665cb047
153eb89e4e
hex2894c5c7

680838599 has 8 divisors (see below), whose sum is σ = 778444800. Its totient is φ = 583318296.

The previous prime is 680838581. The next prime is 680838611. The reversal of 680838599 is 995838086.

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 680838599 - 224 = 664061383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680832599) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3479 + ... + 37064.

It is an arithmetic number, because the mean of its divisors is an integer number (97305600).

Almost surely, 2680838599 is an apocalyptic number.

680838599 is a deficient number, since it is larger than the sum of its proper divisors (97606201).

680838599 is a wasteful number, since it uses less digits than its factorization.

680838599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42949.

The product of its (nonzero) digits is 3732480, while the sum is 56.

The square root of 680838599 is about 26092.8840682666. The cubic root of 680838599 is about 879.7272738715.

The spelling of 680838599 in words is "six hundred eighty million, eight hundred thirty-eight thousand, five hundred ninety-nine".

Divisors: 1 7 2399 16793 40543 283801 97262657 680838599