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82489104 = 243463649
BaseRepresentation
bin1001110101010…
…10111100010000
312202012212210000
410322222330100
5132104122404
612104010000
72021101005
oct472527420
9182185700
1082489104
1142621315
1223760900
1314122329
14ad538ac
157396339
hex4eaaf10

82489104 has 50 divisors (see below), whose sum is σ = 238751150. Its totient is φ = 27495936.

The previous prime is 82489073. The next prime is 82489181. The reversal of 82489104 is 40198428.

It can be written as a sum of positive squares in only one way, i.e., 59907600 + 22581504 = 7740^2 + 4752^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 30529 + ... + 33120.

It is an arithmetic number, because the mean of its divisors is an integer number (4775023).

Almost surely, 282489104 is an apocalyptic number.

It is an amenable number.

82489104 is an abundant number, since it is smaller than the sum of its proper divisors (156262046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82489104 is a wasteful number, since it uses less digits than its factorization.

82489104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63669 (or 63654 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 82489104 is about 9082.3512374275. The cubic root of 82489104 is about 435.3102186685.

The spelling of 82489104 in words is "eighty-two million, four hundred eighty-nine thousand, one hundred four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 81 108 144 162 216 324 432 648 1296 63649 127298 190947 254596 381894 509192 572841 763788 1018384 1145682 1527576 1718523 2291364 3055152 3437046 4582728 5155569 6874092 9165456 10311138 13748184 20622276 27496368 41244552 82489104