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444894049 = 2077121419
BaseRepresentation
bin11010100001001…
…000101101100001
31011000010221220101
4122201020231201
51402343102144
6112051342401
714011352125
oct3241105541
91130127811
10444894049
11209149536
12104bb1a01
137122c922
144312d585
15290d06d4
hex1a848b61

444894049 has 4 divisors (see below), whose sum is σ = 444936240. Its totient is φ = 444851860.

The previous prime is 444894041. The next prime is 444894059. The reversal of 444894049 is 940498444.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 444894049 - 23 = 444894041 is a prime.

It is a super-2 number, since 2×4448940492 = 395861429671228802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444894041) 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, 10062 + ... + 31480.

It is an arithmetic number, because the mean of its divisors is an integer number (111234060).

Almost surely, 2444894049 is an apocalyptic number.

It is an amenable number.

444894049 is a deficient number, since it is larger than the sum of its proper divisors (42191).

444894049 is a wasteful number, since it uses less digits than its factorization.

444894049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42190.

The product of its (nonzero) digits is 663552, while the sum is 46.

The square root of 444894049 is about 21092.5116806890. The cubic root of 444894049 is about 763.4000760127.

The spelling of 444894049 in words is "four hundred forty-four million, eight hundred ninety-four thousand, forty-nine".

Divisors: 1 20771 21419 444894049