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4131485 = 52928493
BaseRepresentation
bin1111110000101010011101
321202220022222
433300222131
52024201420
6224315125
750055101
oct17605235
97686288
104131485
112372056
121472aa5
13b18687
14797901
15569225
hex3f0a9d

4131485 has 8 divisors (see below), whose sum is σ = 5128920. Its totient is φ = 3191104.

The previous prime is 4131473. The next prime is 4131487. The reversal of 4131485 is 5841314.

It can be written as a sum of positive squares in 4 ways, for example, as 487204 + 3644281 = 698^2 + 1909^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 4131485 - 28 = 4131229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4131487) 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, 14102 + ... + 14391.

It is an arithmetic number, because the mean of its divisors is an integer number (641115).

Almost surely, 24131485 is an apocalyptic number.

It is an amenable number.

4131485 is a deficient number, since it is larger than the sum of its proper divisors (997435).

4131485 is a wasteful number, since it uses less digits than its factorization.

4131485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28527.

The product of its digits is 1920, while the sum is 26.

The square root of 4131485 is about 2032.6054708182. The cubic root of 4131485 is about 160.4607163751.

Adding to 4131485 its reverse (5841314), we get a palindrome (9972799).

The spelling of 4131485 in words is "four million, one hundred thirty-one thousand, four hundred eighty-five".

Divisors: 1 5 29 145 28493 142465 826297 4131485