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8361081 = 32929009
BaseRepresentation
bin11111111001010001111001
3120201210020200
4133321101321
54120023311
6455112413
7131032221
oct37712171
916653220
108361081
1147a0893
122972709
1319698b1
141179081
15b02556
hex7f9479

8361081 has 6 divisors (see below), whose sum is σ = 12077130. Its totient is φ = 5574048.

The previous prime is 8361071. The next prime is 8361097. The reversal of 8361081 is 1801638.

It can be written as a sum of positive squares in only one way, i.e., 6456681 + 1904400 = 2541^2 + 1380^2 .

It is not a de Polignac number, because 8361081 - 214 = 8344697 is a prime.

It is a super-2 number, since 2×83610812 = 139815350977122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8361011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 464496 + ... + 464513.

It is an arithmetic number, because the mean of its divisors is an integer number (2012855).

Almost surely, 28361081 is an apocalyptic number.

It is an amenable number.

8361081 is a deficient number, since it is larger than the sum of its proper divisors (3716049).

8361081 is a wasteful number, since it uses less digits than its factorization.

8361081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929015 (or 929012 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 8361081 is about 2891.5533887515. The cubic root of 8361081 is about 202.9648397775.

The spelling of 8361081 in words is "eight million, three hundred sixty-one thousand, eighty-one".

Divisors: 1 3 9 929009 2787027 8361081