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444220607 = 31131109387
BaseRepresentation
bin11010011110100…
…100010010111111
31010221212202010002
4122132210102333
51402210024412
6112025104515
714002545545
oct3236442277
91127782102
10444220607
11208829576
1210492813b
137105523c
1442dd5d95
1528eeadc2
hex1a7a44bf

444220607 has 8 divisors (see below), whose sum is σ = 462054912. Its totient is φ = 426605400.

The previous prime is 444220603. The next prime is 444220633. The reversal of 444220607 is 706022444.

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

It is a cyclic number.

It is not a de Polignac number, because 444220607 - 22 = 444220603 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 444220607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444220603) 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 7 ways as a sum of consecutive naturals, for example, 50633 + ... + 58754.

It is an arithmetic number, because the mean of its divisors is an integer number (57756864).

Almost surely, 2444220607 is an apocalyptic number.

444220607 is a deficient number, since it is larger than the sum of its proper divisors (17834305).

444220607 is a wasteful number, since it uses less digits than its factorization.

444220607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109549.

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 444220607 is about 21076.5416280755. The cubic root of 444220607 is about 763.0146918998.

The spelling of 444220607 in words is "four hundred forty-four million, two hundred twenty thousand, six hundred seven".

Divisors: 1 31 131 4061 109387 3390997 14329697 444220607