Search a number
-
+
2443340420 = 225122167021
BaseRepresentation
bin1001000110100010…
…0110101010000100
320022021120112221122
42101220212222010
520000443343140
61042241133112
7114356023313
oct22150465204
96267515848
102443340420
111044224904
1258232a198
132cc281a81
1419270227a
15e4787ab5
hex91a26a84

2443340420 has 12 divisors (see below), whose sum is σ = 5131014924. Its totient is φ = 977336160.

The previous prime is 2443340413. The next prime is 2443340437. The reversal of 2443340420 is 240433442.

It can be written as a sum of positive squares in 2 ways, for example, as 342768196 + 2100572224 = 18514^2 + 45832^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2443340420.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61083491 + ... + 61083530.

It is an arithmetic number, because the mean of its divisors is an integer number (427584577).

Almost surely, 22443340420 is an apocalyptic number.

2443340420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2443340420 is an abundant number, since it is smaller than the sum of its proper divisors (2687674504).

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

2443340420 is a wasteful number, since it uses less digits than its factorization.

2443340420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122167030 (or 122167028 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

The square root of 2443340420 is about 49430.1569894331. The cubic root of 2443340420 is about 1346.8771750727.

Adding to 2443340420 its reverse (240433442), we get a palindrome (2683773862).

The spelling of 2443340420 in words is "two billion, four hundred forty-three million, three hundred forty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 122167021 244334042 488668084 610835105 1221670210 2443340420