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4505389 = 72392693
BaseRepresentation
bin10001001011111100101101
322110220020021
4101023330231
52123133024
6240322141
753203150
oct21137455
98426207
104505389
1125a7a69
121613351
13c19915
14853c97
155dede4
hex44bf2d

4505389 has 8 divisors (see below), whose sum is σ = 5172480. Its totient is φ = 3844176.

The previous prime is 4505381. The next prime is 4505393. The reversal of 4505389 is 9835054.

4505389 = T62 + T63 + ... + T300.

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

It is not a de Polignac number, because 4505389 - 23 = 4505381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4505381) 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, 327 + ... + 3019.

It is an arithmetic number, because the mean of its divisors is an integer number (646560).

Almost surely, 24505389 is an apocalyptic number.

It is an amenable number.

4505389 is a deficient number, since it is larger than the sum of its proper divisors (667091).

4505389 is a wasteful number, since it uses less digits than its factorization.

4505389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2939.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 4505389 is about 2122.5901629848. The cubic root of 4505389 is about 165.1622401763.

The spelling of 4505389 in words is "four million, five hundred five thousand, three hundred eighty-nine".

Divisors: 1 7 239 1673 2693 18851 643627 4505389