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444004222 = 21811226531
BaseRepresentation
bin11010011101101…
…111011101111110
31010221110202021211
4122131233131332
51402131113342
6112020315034
714000654644
oct3235573576
91127422254
10444004222
112086a0a42
12104842a7a
1370caa8bc
1442d7b194
1528ea6c17
hex1a76f77e

444004222 has 8 divisors (see below), whose sum is σ = 669686472. Its totient is φ = 220775400.

The previous prime is 444004219. The next prime is 444004229. The reversal of 444004222 is 222400444.

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

It is a junction number, because it is equal to n+sod(n) for n = 444004193 and 444004202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444004229) 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, 612904 + ... + 613627.

It is an arithmetic number, because the mean of its divisors is an integer number (83710809).

Almost surely, 2444004222 is an apocalyptic number.

444004222 is a deficient number, since it is larger than the sum of its proper divisors (225682250).

444004222 is a wasteful number, since it uses less digits than its factorization.

444004222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226714.

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 444004222 is about 21071.4076890938. The cubic root of 444004222 is about 762.8907806818.

Adding to 444004222 its reverse (222400444), we get a palindrome (666404666).

The spelling of 444004222 in words is "four hundred forty-four million, four thousand, two hundred twenty-two".

Divisors: 1 2 181 362 1226531 2453062 222002111 444004222