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244102445 = 548820489
BaseRepresentation
bin11101000110010…
…11010100101101
3122000022200121022
432203023110231
5444442234240
640115543525
76022556636
oct1643132455
9560280538
10244102445
11115875864
12698baba5
133b759222
14245c288d
151666b9b5
hexe8cb52d

244102445 has 4 divisors (see below), whose sum is σ = 292922940. Its totient is φ = 195281952.

The previous prime is 244102423. The next prime is 244102447. The reversal of 244102445 is 544201442.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 544201442 = 2272100721.

It can be written as a sum of positive squares in 2 ways, for example, as 28922884 + 215179561 = 5378^2 + 14669^2 .

It is a cyclic number.

It is not a de Polignac number, because 244102445 - 216 = 244036909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244102447) 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, 24410240 + ... + 24410249.

It is an arithmetic number, because the mean of its divisors is an integer number (73230735).

Almost surely, 2244102445 is an apocalyptic number.

It is an amenable number.

244102445 is a deficient number, since it is larger than the sum of its proper divisors (48820495).

244102445 is an equidigital number, since it uses as much as digits as its factorization.

244102445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48820494.

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 244102445 is about 15623.7781922299. The cubic root of 244102445 is about 624.9674180348.

Adding to 244102445 its reverse (544201442), we get a palindrome (788303887).

The spelling of 244102445 in words is "two hundred forty-four million, one hundred two thousand, four hundred forty-five".

Divisors: 1 5 48820489 244102445