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4485 = 351323
BaseRepresentation
bin1000110000101
320011010
41012011
5120420
632433
716035
oct10605
96133
104485
113408
122719
132070
1418c5
1514e0
hex1185

4485 has 16 divisors (see below), whose sum is σ = 8064. Its totient is φ = 2112.

The previous prime is 4483. The next prime is 4493. The reversal of 4485 is 5844.

4485 = T4 + T5 + ... + T29.

It is not a de Polignac number, because 4485 - 21 = 4483 is a prime.

It is a d-powerful number, because it can be written as 44 + 8 + 46 + 53 .

It is a Curzon number.

4485 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184 + ... + 206.

It is an arithmetic number, because the mean of its divisors is an integer number (504).

4485 is the 39-th octagonal number.

It is an amenable number.

4485 is a deficient number, since it is larger than the sum of its proper divisors (3579).

4485 is a wasteful number, since it uses less digits than its factorization.

4485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44.

The product of its digits is 640, while the sum is 21.

The square root of 4485 is about 66.9701426010. The cubic root of 4485 is about 16.4912717841.

The spelling of 4485 in words is "four thousand, four hundred eighty-five".

Divisors: 1 3 5 13 15 23 39 65 69 115 195 299 345 897 1495 4485