Search a number
-
+
2744020 = 225137201
BaseRepresentation
bin1010011101111011010100
312011102002101
422131323110
51200302040
6134451444
732216026
oct12357324
95142071
102744020
111604694
12b03b84
13750ca6
14516016
1539309a
hex29ded4

2744020 has 12 divisors (see below), whose sum is σ = 5762484. Its totient is φ = 1097600.

The previous prime is 2744017. The next prime is 2744029. The reversal of 2744020 is 204472.

It can be written as a sum of positive squares in 2 ways, for example, as 535824 + 2208196 = 732^2 + 1486^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2744029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68581 + ... + 68620.

It is an arithmetic number, because the mean of its divisors is an integer number (480207).

22744020 is an apocalyptic number.

2744020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2744020 is an abundant number, since it is smaller than the sum of its proper divisors (3018464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2744020 is a wasteful number, since it uses less digits than its factorization.

2744020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137210 (or 137208 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 2744020 is about 1656.5083760730. The cubic root of 2744020 is about 140.0003401352. Note that the first 3 decimals are identical.

Adding to 2744020 its reverse (204472), we get a palindrome (2948492).

The spelling of 2744020 in words is "two million, seven hundred forty-four thousand, twenty".

Divisors: 1 2 4 5 10 20 137201 274402 548804 686005 1372010 2744020