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4505641 = 71921783
BaseRepresentation
bin10001001100000000101001
322110220120121
4101030000221
52123140031
6240323241
753203660
oct21140051
98426517
104505641
1125a8178
121613521
13c19a7a
14853dd7
155e0011
hex44c029

4505641 has 12 divisors (see below), whose sum is σ = 5437632. Its totient is φ = 3656664.

The previous prime is 4505623. The next prime is 4505647. The reversal of 4505641 is 1465054.

It is not a de Polignac number, because 4505641 - 211 = 4503593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4505647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1636 + ... + 3418.

It is an arithmetic number, because the mean of its divisors is an integer number (453136).

Almost surely, 24505641 is an apocalyptic number.

It is an amenable number.

4505641 is a deficient number, since it is larger than the sum of its proper divisors (931991).

4505641 is a wasteful number, since it uses less digits than its factorization.

4505641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828 (or 1809 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 4505641 is about 2122.6495235907. The cubic root of 4505641 is about 165.1653194597.

The spelling of 4505641 in words is "four million, five hundred five thousand, six hundred forty-one".

Divisors: 1 7 19 133 361 1783 2527 12481 33877 237139 643663 4505641