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444446026 = 21257717669
BaseRepresentation
bin11010011111011…
…011010101001010
31010222022012022221
4122133123111022
51402234233101
6112034004254
714004505003
oct3237332512
91128265287
10444446026
11208972972
12104a1668a
1371103a1b
14430541aa
1529042aa1
hex1a7db54a

444446026 has 8 divisors (see below), whose sum is σ = 666759780. Its totient is φ = 222192768.

The previous prime is 444446017. The next prime is 444446029. The reversal of 444446026 is 620644444.

It can be written as a sum of positive squares in 2 ways, for example, as 441042001 + 3404025 = 21001^2 + 1845^2 .

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 = 444445982 and 444446000.

It is not an unprimeable number, because it can be changed into a prime (444446029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16320 + ... + 33988.

Almost surely, 2444446026 is an apocalyptic number.

444446026 is a deficient number, since it is larger than the sum of its proper divisors (222313754).

444446026 is a wasteful number, since it uses less digits than its factorization.

444446026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30248.

The product of its (nonzero) digits is 73728, while the sum is 34.

The square root of 444446026 is about 21081.8885776393. Note that the first 3 decimals coincide. The cubic root of 444446026 is about 763.1437335824.

The spelling of 444446026 in words is "four hundred forty-four million, four hundred forty-six thousand, twenty-six".

Divisors: 1 2 12577 17669 25154 35338 222223013 444446026