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6243541081 = 3128118011
BaseRepresentation
bin1011101000010010…
…01110000001011001
3121010010022202020021
411310021032001121
5100241321303311
62511312430441
7310502136451
oct56411160131
917103282207
106243541081
112714352908
121262b48421
1378668960b
144332c6d61
152681e3171
hex17424e059

6243541081 has 12 divisors (see below), whose sum is σ = 6460203792. Its totient is φ = 6033933000.

The previous prime is 6243541069. The next prime is 6243541093. The reversal of 6243541081 is 1801453426.

It is an interprime number because it is at equal distance from previous prime (6243541069) and next prime (6243541093).

It is not a de Polignac number, because 6243541081 - 217 = 6243410009 is a prime.

It is a super-2 number, since 2×62435410812 = 77963610460269297122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6243541001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 775366 + ... + 783376.

It is an arithmetic number, because the mean of its divisors is an integer number (538350316).

Almost surely, 26243541081 is an apocalyptic number.

It is an amenable number.

6243541081 is a deficient number, since it is larger than the sum of its proper divisors (216662711).

6243541081 is an equidigital number, since it uses as much as digits as its factorization.

6243541081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8884 (or 8853 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 6243541081 is about 79016.0811544081. The cubic root of 6243541081 is about 1841.3810009868.

The spelling of 6243541081 in words is "six billion, two hundred forty-three million, five hundred forty-one thousand, eighty-one".

Divisors: 1 31 811 961 8011 25141 248341 779371 6496921 7698571 201404551 6243541081