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4444081 = 191511549
BaseRepresentation
bin10000111100111110110001
322100210010121
4100330332301
52114202311
6235130241
752526335
oct20747661
98323117
104444081
1125659a4
1215a3981
13bc7a45
148397c5
155cbb71
hex43cfb1

4444081 has 8 divisors (see below), whose sum is σ = 4712000. Its totient is φ = 4179600.

The previous prime is 4444049. The next prime is 4444087. The reversal of 4444081 is 1804444.

It is a happy number.

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 4444081 - 25 = 4444049 is a prime.

It is a super-2 number, since 2×44440812 = 39499711869122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4444087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2095 + ... + 3643.

It is an arithmetic number, because the mean of its divisors is an integer number (589000).

Almost surely, 24444081 is an apocalyptic number.

It is an amenable number.

4444081 is a deficient number, since it is larger than the sum of its proper divisors (267919).

4444081 is a wasteful number, since it uses less digits than its factorization.

4444081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1719.

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 4444081 is about 2108.0989065981. The cubic root of 4444081 is about 164.4096565111.

It can be divided in two parts, 44440 and 81, that added together give a square (44521 = 2112).

The spelling of 4444081 in words is "four million, four hundred forty-four thousand, eighty-one".

Divisors: 1 19 151 1549 2869 29431 233899 4444081