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6800840605 = 5132931181643
BaseRepresentation
bin1100101010101110…
…01001011110011101
3122112221222111110101
412111113021132131
5102412003344410
63042501341101
7330350122426
oct62527113635
918487874411
106800840605
11297a996229
121399707791
13844c84450
1448731664d
1529c0c8d3a
hex1955c979d

6800840605 has 64 divisors (see below), whose sum is σ = 9451653120. Its totient is φ = 4659379200.

The previous prime is 6800840593. The next prime is 6800840609. The reversal of 6800840605 is 5060480086.

It is not a de Polignac number, because 6800840605 - 25 = 6800840573 is a prime.

It is a super-3 number, since 3×68008406053 (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6800840609) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 10576414 + ... + 10577056.

It is an arithmetic number, because the mean of its divisors is an integer number (147682080).

Almost surely, 26800840605 is an apocalyptic number.

6800840605 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6800840605 is a deficient number, since it is larger than the sum of its proper divisors (2650812515).

6800840605 is a wasteful number, since it uses less digits than its factorization.

6800840605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 6800840605 is about 82467.2092713219. The cubic root of 6800840605 is about 1894.6145376666.

The spelling of 6800840605 in words is "six billion, eight hundred million, eight hundred forty thousand, six hundred five".

Divisors: 1 5 13 29 31 65 145 155 181 377 403 643 899 905 1885 2015 2353 3215 4495 5249 5611 8359 11687 11765 18647 19933 26245 28055 41795 58435 68237 72943 93235 99665 116383 162719 242411 259129 341185 364715 578057 581915 813595 1212055 1295645 1512979 2115347 2890285 3375107 3607873 7514741 7564895 10576735 16875535 18039365 37573705 43876391 46902349 104628317 219381955 234511745 523141585 1360168121 6800840605