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6831552085 = 517313461557
BaseRepresentation
bin1100101110011000…
…10011011001010101
3122122002202210200121
412113030103121111
5102442334131320
63045515511541
7331202143321
oct62714233125
918562683617
106831552085
112996262216
1213a7a585b1
1384b448217
1448b42c981
1529eb438aa
hex197313655

6831552085 has 32 divisors (see below), whose sum is σ = 8742377952. Its totient is φ = 5107015680.

The previous prime is 6831552073. The next prime is 6831552103. The reversal of 6831552085 is 5802551386.

It can be written as a sum of positive squares in 16 ways, for example, as 4854326929 + 1977225156 = 69673^2 + 44466^2 .

It is not a de Polignac number, because 6831552085 - 27 = 6831551957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12264627 + ... + 12265183.

It is an arithmetic number, because the mean of its divisors is an integer number (273199311).

Almost surely, 26831552085 is an apocalyptic number.

It is an amenable number.

6831552085 is a deficient number, since it is larger than the sum of its proper divisors (1910825867).

6831552085 is a wasteful number, since it uses less digits than its factorization.

6831552085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1353.

The product of its (nonzero) digits is 288000, while the sum is 43.

The square root of 6831552085 is about 82653.2037189122. The cubic root of 6831552085 is about 1897.4621782337.

The spelling of 6831552085 in words is "six billion, eight hundred thirty-one million, five hundred fifty-two thousand, eighty-five".

Divisors: 1 5 17 85 313 461 557 1565 2305 2785 5321 7837 9469 26605 39185 47345 144293 174341 256777 721465 871705 1283885 2452981 2963797 4365209 12264905 14818985 21826045 80371201 401856005 1366310417 6831552085