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244940713 = 1553157721
BaseRepresentation
bin11101001100101…
…11111110101001
3122001220021111021
432212113332221
51000201100323
640145532441
76032650603
oct1646277651
9561807437
10244940713
11116298646
126a044121
133b990944
1424760173
151678505d
hexe997fa9

244940713 has 4 divisors (see below), whose sum is σ = 245099988. Its totient is φ = 244781440.

The previous prime is 244940711. The next prime is 244940741. The reversal of 244940713 is 317049442.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 317049442 = 2158524721.

It can be written as a sum of positive squares in 2 ways, for example, as 112529664 + 132411049 = 10608^2 + 11507^2 .

It is a cyclic number.

It is not a de Polignac number, because 244940713 - 21 = 244940711 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (244940711) 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, 77308 + ... + 80413.

It is an arithmetic number, because the mean of its divisors is an integer number (61274997).

Almost surely, 2244940713 is an apocalyptic number.

It is an amenable number.

244940713 is a deficient number, since it is larger than the sum of its proper divisors (159275).

244940713 is a wasteful number, since it uses less digits than its factorization.

244940713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159274.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 244940713 is about 15650.5818741669. The cubic root of 244940713 is about 625.6819972968.

The spelling of 244940713 in words is "two hundred forty-four million, nine hundred forty thousand, seven hundred thirteen".

Divisors: 1 1553 157721 244940713