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6830378525 = 52377384193
BaseRepresentation
bin1100101110001111…
…10100111000011101
3122122000120011212102
412113013310320131
5102442034103100
63045434414445
7331156155005
oct62707647035
918560504772
106830378525
112995630533
1213a7591425
1384b126cc9
1448b205005
1529e9b0cd5
hex1971f4e1d

6830378525 has 12 divisors (see below), whose sum is σ = 8698580532. Its totient is φ = 5316618240.

The previous prime is 6830378393. The next prime is 6830378537. The reversal of 6830378525 is 5258730386.

It can be written as a sum of positive squares in 6 ways, for example, as 36168196 + 6794210329 = 6014^2 + 82427^2 .

It is not a de Polignac number, because 6830378525 - 226 = 6763269661 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6830378525.

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 11 ways as a sum of consecutive naturals, for example, 3691172 + ... + 3693021.

It is an arithmetic number, because the mean of its divisors is an integer number (724881711).

Almost surely, 26830378525 is an apocalyptic number.

It is an amenable number.

6830378525 is a deficient number, since it is larger than the sum of its proper divisors (1868202007).

6830378525 is a wasteful number, since it uses less digits than its factorization.

6830378525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7384240 (or 7384235 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 47.

The square root of 6830378525 is about 82646.1041126562. The cubic root of 6830378525 is about 1897.3535199958.

The spelling of 6830378525 in words is "six billion, eight hundred thirty million, three hundred seventy-eight thousand, five hundred twenty-five".

Divisors: 1 5 25 37 185 925 7384193 36920965 184604825 273215141 1366075705 6830378525