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6800639998 = 220391667641
BaseRepresentation
bin1100101010101100…
…11000011111111110
3122112221121022021111
412111112120133332
5102411430434443
63042453152234
7330345325525
oct62526303776
918487538244
106800639998
11297a869539
12139962b67a
13844c14049
144872a34bc
1529c08969d
hex1955987fe

6800639998 has 8 divisors (see below), whose sum is σ = 10205969040. Its totient is φ = 3398650320.

The previous prime is 6800639927. The next prime is 6800640031. The reversal of 6800639998 is 8999360086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 829743 + ... + 837898.

It is an arithmetic number, because the mean of its divisors is an integer number (1275746130).

Almost surely, 26800639998 is an apocalyptic number.

6800639998 is a deficient number, since it is larger than the sum of its proper divisors (3405329042).

6800639998 is a wasteful number, since it uses less digits than its factorization.

6800639998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1669682.

The product of its (nonzero) digits is 5038848, while the sum is 58.

The square root of 6800639998 is about 82465.9929789243. The cubic root of 6800639998 is about 1894.5959087599.

The spelling of 6800639998 in words is "six billion, eight hundred million, six hundred thirty-nine thousand, nine hundred ninety-eight".

Divisors: 1 2 2039 4078 1667641 3335282 3400319999 6800639998