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6830863557 = 3710915119763
BaseRepresentation
bin1100101110010011…
…01011010011000101
3122122001110211012120
412113021223103011
5102442200113212
63045453040153
7331163245050
oct62711532305
918561424176
106830863557
112995931991
1213a7786059
1384b2669cb
1448b2cda97
1529ea5988c
hex19726b4c5

6830863557 has 32 divisors (see below), whose sum is σ = 10574530560. Its totient is φ = 3841732800.

The previous prime is 6830863549. The next prime is 6830863573. The reversal of 6830863557 is 7553680386.

It is not a de Polignac number, because 6830863557 - 23 = 6830863549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6830863537) by changing a digit.

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, 335758 + ... + 355520.

It is an arithmetic number, because the mean of its divisors is an integer number (330454080).

Almost surely, 26830863557 is an apocalyptic number.

It is an amenable number.

6830863557 is a deficient number, since it is larger than the sum of its proper divisors (3743667003).

6830863557 is a wasteful number, since it uses less digits than its factorization.

6830863557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20033.

The product of its (nonzero) digits is 3628800, while the sum is 51.

The square root of 6830863557 is about 82649.0384517570. The cubic root of 6830863557 is about 1897.3984299221.

The spelling of 6830863557 in words is "six billion, eight hundred thirty million, eight hundred sixty-three thousand, five hundred fifty-seven".

Divisors: 1 3 7 21 109 151 327 453 763 1057 2289 3171 16459 19763 49377 59289 115213 138341 345639 415023 2154167 2984213 6462501 8952639 15079169 20889491 45237507 62668473 325279217 975837651 2276954519 6830863557