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444668073 = 3592512249
BaseRepresentation
bin11010100000010…
…001100010101001
31010222201110220220
4122200101202221
51402313334243
6112042440253
714006421243
oct3240214251
91128643826
10444668073
11209004783
12104b03089
1371180b05
14430b1093
1529088783
hex1a8118a9

444668073 has 8 divisors (see below), whose sum is σ = 602940000. Its totient is φ = 291420768.

The previous prime is 444668071. The next prime is 444668093. The reversal of 444668073 is 370866444.

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

It is not a de Polignac number, because 444668073 - 21 = 444668071 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (444668071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1255948 + ... + 1256301.

It is an arithmetic number, because the mean of its divisors is an integer number (75367500).

Almost surely, 2444668073 is an apocalyptic number.

It is an amenable number.

444668073 is a deficient number, since it is larger than the sum of its proper divisors (158271927).

444668073 is a wasteful number, since it uses less digits than its factorization.

444668073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2512311.

The product of its (nonzero) digits is 387072, while the sum is 42.

The square root of 444668073 is about 21087.1542176748. The cubic root of 444668073 is about 763.2708023036.

The spelling of 444668073 in words is "four hundred forty-four million, six hundred sixty-eight thousand, seventy-three".

Divisors: 1 3 59 177 2512249 7536747 148222691 444668073