Search a number
-
+
244025221 = 1144350077
BaseRepresentation
bin11101000101110…
…00011110000101
3122000011202200011
432202320132011
5444432301341
640114150221
76022115536
oct1642703605
9560152604
10244025221
11115822840
1269882371
133b73002b
14245a268d
1516653b81
hexe8b8785

244025221 has 8 divisors (see below), whose sum is σ = 266815584. Its totient is φ = 221335920.

The previous prime is 244025219. The next prime is 244025263. The reversal of 244025221 is 122520442.

244025221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 244025221 - 21 = 244025219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 244025192 and 244025201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244025281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20166 + ... + 29911.

It is an arithmetic number, because the mean of its divisors is an integer number (33351948).

Almost surely, 2244025221 is an apocalyptic number.

It is an amenable number.

244025221 is a deficient number, since it is larger than the sum of its proper divisors (22790363).

244025221 is a wasteful number, since it uses less digits than its factorization.

244025221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50531.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 244025221 is about 15621.3066354899. The cubic root of 244025221 is about 624.9015063992.

Adding to 244025221 its reverse (122520442), we get a palindrome (366545663).

The spelling of 244025221 in words is "two hundred forty-four million, twenty-five thousand, two hundred twenty-one".

Divisors: 1 11 443 4873 50077 550847 22184111 244025221