Search a number
-
+
4281489 = 32475721
BaseRepresentation
bin10000010101010010010001
322001112002200
4100111102101
52044001424
6231433413
751251322
oct20252221
98045080
104281489
112464823
121525869
13b6ba34
147d6449
155988c9
hex415491

4281489 has 6 divisors (see below), whose sum is σ = 6184386. Its totient is φ = 2854320.

The previous prime is 4281481. The next prime is 4281493. The reversal of 4281489 is 9841824.

It can be written as a sum of positive squares in only one way, i.e., 3359889 + 921600 = 1833^2 + 960^2 .

It is not a de Polignac number, because 4281489 - 23 = 4281481 is a prime.

It is a super-2 number, since 2×42814892 = 36662296114242, which contains 22 as substring.

It is a Curzon number.

4281489 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4281481) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 237852 + ... + 237869.

It is an arithmetic number, because the mean of its divisors is an integer number (1030731).

Almost surely, 24281489 is an apocalyptic number.

It is an amenable number.

4281489 is a deficient number, since it is larger than the sum of its proper divisors (1902897).

4281489 is a wasteful number, since it uses less digits than its factorization.

4281489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475727 (or 475724 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 4281489 is about 2069.1759229220. The cubic root of 4281489 is about 162.3796536952.

The spelling of 4281489 in words is "four million, two hundred eighty-one thousand, four hundred eighty-nine".

Divisors: 1 3 9 475721 1427163 4281489