Search a number
-
+
1224470 = 25139419
BaseRepresentation
bin100101010111100010110
32022012122202
410222330112
5303140340
642124502
713256612
oct4527426
92265582
101224470
11766a65
124b0732
1333b450
1423c342
15192c15
hex12af16

1224470 has 16 divisors (see below), whose sum is σ = 2373840. Its totient is φ = 452064.

The previous prime is 1224439. The next prime is 1224473. The reversal of 1224470 is 744221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4580 + ... + 4839.

It is an arithmetic number, because the mean of its divisors is an integer number (148365).

21224470 is an apocalyptic number.

1224470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1224470 is a deficient number, since it is larger than the sum of its proper divisors (1149370).

1224470 is a wasteful number, since it uses less digits than its factorization.

1224470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9439.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 1224470 is about 1106.5577255616. The cubic root of 1224470 is about 106.9833147186.

Adding to 1224470 its reverse (744221), we get a palindrome (1968691).

Subtracting from 1224470 its reverse (744221), we obtain a square (480249 = 6932).

The spelling of 1224470 in words is "one million, two hundred twenty-four thousand, four hundred seventy".

Divisors: 1 2 5 10 13 26 65 130 9419 18838 47095 94190 122447 244894 612235 1224470