Search a number
-
+
6805015828 = 2213891470401
BaseRepresentation
bin1100101011001110…
…00100110100010100
3122120020211121210021
412111213010310110
5102414041001303
63043131034524
7330430452202
oct62547046424
918506747707
106805015828
112982288126
12139ab9ba44
13845ab69b0
14487ac2072
1529c650ebd
hex1959c4d14

6805015828 has 24 divisors (see below), whose sum is σ = 12968945640. Its totient is φ = 3105484800.

The previous prime is 6805015801. The next prime is 6805015829. The reversal of 6805015828 is 8285105086.

It can be written as a sum of positive squares in 4 ways, for example, as 10640644 + 6794375184 = 3262^2 + 82428^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6805015829) 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, 730573 + ... + 739828.

It is an arithmetic number, because the mean of its divisors is an integer number (540372735).

Almost surely, 26805015828 is an apocalyptic number.

It is an amenable number.

6805015828 is a deficient number, since it is larger than the sum of its proper divisors (6163929812).

6805015828 is a wasteful number, since it uses less digits than its factorization.

6805015828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470507 (or 1470505 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 43.

The square root of 6805015828 is about 82492.5198305883. The cubic root of 6805015828 is about 1895.0021769990.

The spelling of 6805015828 in words is "six billion, eight hundred five million, fifteen thousand, eight hundred twenty-eight".

Divisors: 1 2 4 13 26 52 89 178 356 1157 2314 4628 1470401 2940802 5881604 19115213 38230426 76460852 130865689 261731378 523462756 1701253957 3402507914 6805015828