Search a number
-
+
4878449 = 38912541
BaseRepresentation
bin10010100111000001110001
3100011211222022
4102213001301
52222102244
6252321225
756315612
oct22470161
910154868
104878449
112832284
121773215
13101a674
1490dc09
156656ee
hex4a7071

4878449 has 4 divisors (see below), whose sum is σ = 4891380. Its totient is φ = 4865520.

The previous prime is 4878443. The next prime is 4878463. The reversal of 4878449 is 9448784.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2755600 + 2122849 = 1660^2 + 1457^2 .

It is a cyclic number.

It is not a de Polignac number, because 4878449 - 220 = 3829873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4878443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5882 + ... + 6659.

It is an arithmetic number, because the mean of its divisors is an integer number (1222845).

Almost surely, 24878449 is an apocalyptic number.

It is an amenable number.

4878449 is a deficient number, since it is larger than the sum of its proper divisors (12931).

4878449 is a wasteful number, since it uses less digits than its factorization.

4878449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12930.

The product of its digits is 258048, while the sum is 44.

The square root of 4878449 is about 2208.7211231842. The cubic root of 4878449 is about 169.6005500346.

The spelling of 4878449 in words is "four million, eight hundred seventy-eight thousand, four hundred forty-nine".

Divisors: 1 389 12541 4878449