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6864868011 = 32288289337
BaseRepresentation
bin1100110010010110…
…11001001010101011
3122201102110102112210
412121023121022223
5103024401234021
63053105540203
7332055262311
oct63113311253
918642412483
106864868011
112a03047a41
1213b7044663
138553115a1
14491a220b1
152a2a24e76
hex1992d92ab

6864868011 has 4 divisors (see below), whose sum is σ = 9153157352. Its totient is φ = 4576578672.

The previous prime is 6864868007. The next prime is 6864868019. The reversal of 6864868011 is 1108684686.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6864868011 - 22 = 6864868007 is a prime.

It is a super-2 number, since 2×68648680112 = 94252825616902192242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6864868019) 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 3 ways as a sum of consecutive naturals, for example, 1144144666 + ... + 1144144671.

It is an arithmetic number, because the mean of its divisors is an integer number (2288289338).

Almost surely, 26864868011 is an apocalyptic number.

6864868011 is a deficient number, since it is larger than the sum of its proper divisors (2288289341).

6864868011 is a wasteful number, since it uses less digits than its factorization.

6864868011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2288289340.

The product of its (nonzero) digits is 442368, while the sum is 48.

The square root of 6864868011 is about 82854.4990389780. The cubic root of 6864868011 is about 1900.5416748287.

The spelling of 6864868011 in words is "six billion, eight hundred sixty-four million, eight hundred sixty-eight thousand, eleven".

Divisors: 1 3 2288289337 6864868011