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6861145068 = 2233611041461
BaseRepresentation
bin1100110001111010…
…01100001111101100
3122201011110021122000
412120331030033230
5103022423120233
63052454052300
7332011525251
oct63075141754
918634407560
106861145068
112a00a34928
1213b594a090
13854609b6b
14491333428
152a253bd13
hex198f4c3ec

6861145068 has 48 divisors (see below), whose sum is σ = 18079780320. Its totient is φ = 2249553600.

The previous prime is 6861145063. The next prime is 6861145069. The reversal of 6861145068 is 8605411686.

It is not an unprimeable number, because it can be changed into a prime (6861145063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 514143 + ... + 527318.

It is an arithmetic number, because the mean of its divisors is an integer number (376662090).

Almost surely, 26861145068 is an apocalyptic number.

It is an amenable number.

6861145068 is an abundant number, since it is smaller than the sum of its proper divisors (11218635252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6861145068 is a wasteful number, since it uses less digits than its factorization.

6861145068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041535 (or 1041527 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 6861145068 is about 82832.0292399021. The cubic root of 6861145068 is about 1900.1980465766.

The spelling of 6861145068 in words is "six billion, eight hundred sixty-one million, one hundred forty-five thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 61 108 122 183 244 366 549 732 1098 1647 2196 3294 6588 1041461 2082922 3124383 4165844 6248766 9373149 12497532 18746298 28119447 37492596 56238894 63529121 112477788 127058242 190587363 254116484 381174726 571762089 762349452 1143524178 1715286267 2287048356 3430572534 6861145068