Search a number
-
+
4328481 = 31442827
BaseRepresentation
bin10000100000110000100001
322010220120010
4100200300201
52102002411
6232435133
751535323
oct20406041
98126503
104328481
112497063
121548aa9
13b87241
14809613
155a77a6
hex420c21

4328481 has 4 divisors (see below), whose sum is σ = 5771312. Its totient is φ = 2885652.

The previous prime is 4328461. The next prime is 4328497. The reversal of 4328481 is 1848234.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4328481 - 217 = 4197409 is a prime.

It is a super-2 number, since 2×43284812 = 37471495534722, which contains 22 as substring.

It is a D-number.

It is the 2081-st Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4328461) by changing a digit.

It is a nontrivial repunit in base 2080.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 721411 + ... + 721416.

It is an arithmetic number, because the mean of its divisors is an integer number (1442828).

Almost surely, 24328481 is an apocalyptic number.

It is an amenable number.

4328481 is a deficient number, since it is larger than the sum of its proper divisors (1442831).

4328481 is a wasteful number, since it uses less digits than its factorization.

4328481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442830.

The product of its digits is 6144, while the sum is 30.

The square root of 4328481 is about 2080.5001802451. The cubic root of 4328481 is about 162.9715659185.

It can be divided in two parts, 43284 and 81, that added together give a triangular number (43365 = T294).

The spelling of 4328481 in words is "four million, three hundred twenty-eight thousand, four hundred eighty-one".

Divisors: 1 3 1442827 4328481