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84506441 = 252133521
BaseRepresentation
bin1010000100101…
…11011101001001
312220000101001012
411002113131021
5133113201231
612215133305
72044202315
oct502273511
9186011035
1084506441
1143779a38
1224374235
131467a616
14b31ab45
157643e2b
hex5097749

84506441 has 4 divisors (see below), whose sum is σ = 84542484. Its totient is φ = 84470400.

The previous prime is 84506431. The next prime is 84506447. The reversal of 84506441 is 14460548.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6996025 + 77510416 = 2645^2 + 8804^2 .

It is a cyclic number.

It is not a de Polignac number, because 84506441 - 214 = 84490057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84506398 and 84506407.

It is not an unprimeable number, because it can be changed into a prime (84506447) 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, 14240 + ... + 19281.

It is an arithmetic number, because the mean of its divisors is an integer number (21135621).

Almost surely, 284506441 is an apocalyptic number.

It is an amenable number.

84506441 is a deficient number, since it is larger than the sum of its proper divisors (36043).

84506441 is a wasteful number, since it uses less digits than its factorization.

84506441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36042.

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 84506441 is about 9192.7384929628. The cubic root of 84506441 is about 438.8302971247.

Adding to 84506441 its reverse (14460548), we get a palindrome (98966989).

The spelling of 84506441 in words is "eighty-four million, five hundred six thousand, four hundred forty-one".

Divisors: 1 2521 33521 84506441