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244030013 = 673642239
BaseRepresentation
bin11101000101110…
…01101000111101
3122000012000020122
432202321220331
5444432430023
640114224325
76022135523
oct1642715075
9560160218
10244030013
111158263a7
12698850a5
133b732276
14245a4313
15166552c8
hexe8b9a3d

244030013 has 4 divisors (see below), whose sum is σ = 247672320. Its totient is φ = 240387708.

The previous prime is 244030009. The next prime is 244030037. The reversal of 244030013 is 310030442.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 244030013 - 22 = 244030009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 244029973 and 244030000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244000013) 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, 1821053 + ... + 1821186.

It is an arithmetic number, because the mean of its divisors is an integer number (61918080).

Almost surely, 2244030013 is an apocalyptic number.

It is an amenable number.

244030013 is a deficient number, since it is larger than the sum of its proper divisors (3642307).

244030013 is an equidigital number, since it uses as much as digits as its factorization.

244030013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3642306.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 244030013 is about 15621.4600149922. The cubic root of 244030013 is about 624.9055968349.

Adding to 244030013 its reverse (310030442), we get a palindrome (554060455).

The spelling of 244030013 in words is "two hundred forty-four million, thirty thousand, thirteen".

Divisors: 1 67 3642239 244030013