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82389284 = 2261337661
BaseRepresentation
bin1001110100100…
…10100100100100
312202000210211222
410322102210210
5132042424114
612101515512
72020203665
oct472224444
9182023758
1082389284
114256331a
1223712b98
13140b8a73
14ad2936c
15737698e
hex4e92924

82389284 has 12 divisors (see below), whose sum is σ = 146545308. Its totient is φ = 40519200.

The previous prime is 82389277. The next prime is 82389299. The reversal of 82389284 is 48298328.

It can be written as a sum of positive squares in 2 ways, for example, as 47224384 + 35164900 = 6872^2 + 5930^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168587 + ... + 169074.

It is an arithmetic number, because the mean of its divisors is an integer number (12212109).

Almost surely, 282389284 is an apocalyptic number.

It is an amenable number.

82389284 is a deficient number, since it is larger than the sum of its proper divisors (64156024).

82389284 is a wasteful number, since it uses less digits than its factorization.

82389284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337726 (or 337724 counting only the distinct ones).

The product of its digits is 221184, while the sum is 44.

The square root of 82389284 is about 9076.8543009128. The cubic root of 82389284 is about 435.1345582760.

The spelling of 82389284 in words is "eighty-two million, three hundred eighty-nine thousand, two hundred eighty-four".

Divisors: 1 2 4 61 122 244 337661 675322 1350644 20597321 41194642 82389284