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6810680560 = 245414321123
BaseRepresentation
bin1100101011111001…
…01011110011110000
3122120122111102100011
412111330223303300
5102422013234220
63043452304304
7330526554355
oct62574536360
918518442304
106810680560
1129854a7122
1213a0a72094
1384701b1c8
1448875862c
1529cdbe65a
hex195f2bcf0

6810680560 has 120 divisors (see below), whose sum is σ = 16621842384. Its totient is φ = 2593704960.

The previous prime is 6810680557. The next prime is 6810680579. The reversal of 6810680560 is 650860186.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6064159 + ... + 6065281.

Almost surely, 26810680560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6810680560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8310921192).

6810680560 is an abundant number, since it is smaller than the sum of its proper divisors (9811161824).

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

6810680560 is a wasteful number, since it uses less digits than its factorization.

6810680560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263 (or 1214 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 6810680560 is about 82526.8475103708. The cubic root of 6810680560 is about 1895.5278530826.

The spelling of 6810680560 in words is "six billion, eight hundred ten million, six hundred eighty thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 40 41 43 80 82 86 164 172 205 215 328 344 410 430 656 688 820 860 1123 1640 1720 1763 1849 2246 3280 3440 3526 3698 4492 5615 7052 7396 8815 8984 9245 11230 14104 14792 17630 17968 18490 22460 28208 29584 35260 36980 44920 46043 48289 70520 73960 75809 89840 92086 96578 141040 147920 151618 184172 193156 230215 241445 303236 368344 379045 386312 460430 482890 606472 736688 758090 772624 920860 965780 1212944 1516180 1841720 1931560 1979849 2076427 3032360 3683440 3863120 3959698 4152854 6064720 7919396 8305708 9899245 10382135 15838792 16611416 19798490 20764270 31677584 33222832 39596980 41528540 79193960 83057080 85133507 158387920 166114160 170267014 340534028 425667535 681068056 851335070 1362136112 1702670140 3405340280 6810680560