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8540063081 = 112233481477
BaseRepresentation
bin1111111010000011…
…10000010101101001
3211001011122011011122
413331001300111221
5114442224004311
63531231105025
7421426224044
oct77501602551
924034564148
108540063081
113692708880
1217a4072175
13a613b4684
145b02cbc5b
1534eb290db
hex1fd070569

8540063081 has 8 divisors (see below), whose sum is σ = 9358212864. Its totient is φ = 7728876720.

The previous prime is 8540063069. The next prime is 8540063083. The reversal of 8540063081 is 1803600458.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8540063081 - 222 = 8535868777 is a prime.

It is a super-2 number, since 2×85400630812 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8540063083) 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 7 ways as a sum of consecutive naturals, for example, 1738286 + ... + 1743191.

It is an arithmetic number, because the mean of its divisors is an integer number (1169776608).

Almost surely, 28540063081 is an apocalyptic number.

It is an amenable number.

8540063081 is a deficient number, since it is larger than the sum of its proper divisors (818149783).

8540063081 is a wasteful number, since it uses less digits than its factorization.

8540063081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3481711.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 8540063081 is about 92412.4617191859. The cubic root of 8540063081 is about 2044.0288732593.

The spelling of 8540063081 in words is "eight billion, five hundred forty million, sixty-three thousand, eighty-one".

Divisors: 1 11 223 2453 3481477 38296247 776369371 8540063081