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82405058 = 279521551
BaseRepresentation
bin1001110100101…
…10011011000010
312202001121111012
410322112123002
5132043430213
612102120522
72020300661
oct472263302
9182047435
1082405058
114257415a
1223720142
13140c2cb8
14ad30dd8
15737b4a8
hex4e966c2

82405058 has 8 divisors (see below), whose sum is σ = 125172480. Its totient is φ = 40680900.

The previous prime is 82405051. The next prime is 82405073. The reversal of 82405058 is 85050428.

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

It is not an unprimeable number, because it can be changed into a prime (82405051) 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 3 ways as a sum of consecutive naturals, for example, 260618 + ... + 260933.

It is an arithmetic number, because the mean of its divisors is an integer number (15646560).

Almost surely, 282405058 is an apocalyptic number.

82405058 is a deficient number, since it is larger than the sum of its proper divisors (42767422).

82405058 is a wasteful number, since it uses less digits than its factorization.

82405058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521632.

The product of its (nonzero) digits is 12800, while the sum is 32.

The square root of 82405058 is about 9077.7231726904. The cubic root of 82405058 is about 435.1623263473.

The spelling of 82405058 in words is "eighty-two million, four hundred five thousand, fifty-eight".

Divisors: 1 2 79 158 521551 1043102 41202529 82405058