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83411305 = 524169221
BaseRepresentation
bin1001111100011…
…00000101101001
312210221201210121
410332030011221
5132323130210
612135443241
72031661435
oct476140551
9183851717
1083411305
11430a116a
1223b26521
1314386003
14b1139c5
1574c96da
hex4f8c169

83411305 has 8 divisors (see below), whose sum is σ = 100510344. Its totient is φ = 66451200.

The previous prime is 83411303. The next prime is 83411327. The reversal of 83411305 is 50311438.

It can be written as a sum of positive squares in 4 ways, for example, as 13571856 + 69839449 = 3684^2 + 8357^2 .

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

It is not a de Polignac number, because 83411305 - 21 = 83411303 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83411305.

It is not an unprimeable number, because it can be changed into a prime (83411303) 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 7 ways as a sum of consecutive naturals, for example, 33406 + ... + 35815.

It is an arithmetic number, because the mean of its divisors is an integer number (12563793).

Almost surely, 283411305 is an apocalyptic number.

It is an amenable number.

83411305 is a deficient number, since it is larger than the sum of its proper divisors (17099039).

83411305 is a wasteful number, since it uses less digits than its factorization.

83411305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69467.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 83411305 is about 9132.9789773107. The cubic root of 83411305 is about 436.9264189518.

The spelling of 83411305 in words is "eighty-three million, four hundred eleven thousand, three hundred five".

Divisors: 1 5 241 1205 69221 346105 16682261 83411305