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227133009 = 3243213649
BaseRepresentation
bin11011000100111…
…00011001010001
3120211101112220200
431202130121101
5431121224014
634312125413
75425412235
oct1542343121
9524345820
10227133009
11107235434
1264096869
133809733c
14222465c5
1514e18a09
hexd89c651

227133009 has 18 divisors (see below), whose sum is σ = 335912850. Its totient is φ = 147889728.

The previous prime is 227133007. The next prime is 227133043. The reversal of 227133009 is 900331722.

It can be written as a sum of positive squares in only one way, i.e., 150185025 + 76947984 = 12255^2 + 8772^2 .

It is not a de Polignac number, because 227133009 - 21 = 227133007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (227133007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 9817 + ... + 23465.

It is an arithmetic number, because the mean of its divisors is an integer number (18661825).

Almost surely, 2227133009 is an apocalyptic number.

It is an amenable number.

227133009 is a deficient number, since it is larger than the sum of its proper divisors (108779841).

227133009 is a wasteful number, since it uses less digits than its factorization.

227133009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13741 (or 13695 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 227133009 is about 15070.9325856100. The cubic root of 227133009 is about 610.1361417891.

The spelling of 227133009 in words is "two hundred twenty-seven million, one hundred thirty-three thousand, nine".

Divisors: 1 3 9 43 129 387 1849 5547 13649 16641 40947 122841 586907 1760721 5282163 25237001 75711003 227133009