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6808890256 = 24744212
BaseRepresentation
bin1100101011101011…
…10110101110010000
3122120112010110111121
412111311312232100
5102421033442011
63043350052024
7330505420000
oct62565665620
918515113447
106808890256
112984494033
1213a034a014
1384684235c
14488410000
1529cb68e71
hex195d76b90

6808890256 has 75 divisors (see below), whose sum is σ = 15426655953. Its totient is φ = 2911164480.

The previous prime is 6808890203. The next prime is 6808890281. The reversal of 6808890256 is 6520988086.

The square root of 6808890256 is 82516.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 32307856 + 6776582400 = 5684^2 + 82320^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 16172926 + ... + 16173346.

Almost surely, 26808890256 is an apocalyptic number.

6808890256 is the 82516-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6808890256

6808890256 is an abundant number, since it is smaller than the sum of its proper divisors (8617765697).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6808890256 is an frugal number, since it uses more digits than its factorization.

6808890256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 52.

The cubic root of 6808890256 is about 1895.3617478765.

The spelling of 6808890256 in words is "six billion, eight hundred eight million, eight hundred ninety thousand, two hundred fifty-six".

Divisors: 1 2 4 7 8 14 16 28 49 56 98 112 196 343 392 421 686 784 842 1372 1684 2401 2744 2947 3368 4802 5488 5894 6736 9604 11788 19208 20629 23576 38416 41258 47152 82516 144403 165032 177241 288806 330064 354482 577612 708964 1010821 1155224 1240687 1417928 2021642 2310448 2481374 2835856 4043284 4962748 8086568 8684809 9925496 16173136 17369618 19850992 34739236 60793663 69478472 121587326 138956944 243174652 425555641 486349304 851111282 972698608 1702222564 3404445128 6808890256