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4444481 = 14813001
BaseRepresentation
bin10000111101000101000001
322100210200102
4100331011001
52114210411
6235132145
752530446
oct20750501
98323612
104444481
112566228
1215a4055
13bc7c92
148399cd
155cbd3b
hex43d141

4444481 has 4 divisors (see below), whose sum is σ = 4448964. Its totient is φ = 4440000.

The previous prime is 4444471. The next prime is 4444483. The reversal of 4444481 is 1844444.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2146225 + 2298256 = 1465^2 + 1516^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-4444481 is a prime.

It is a super-2 number, since 2×44444812 = 39506822718722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4444483) 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, 20 + ... + 2981.

It is an arithmetic number, because the mean of its divisors is an integer number (1112241).

Almost surely, 24444481 is an apocalyptic number.

It is an amenable number.

4444481 is a deficient number, since it is larger than the sum of its proper divisors (4483).

4444481 is a wasteful number, since it uses less digits than its factorization.

4444481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4482.

The product of its digits is 8192, while the sum is 29.

The square root of 4444481 is about 2108.1937766723. The cubic root of 4444481 is about 164.4145890562.

The spelling of 4444481 in words is "four million, four hundred forty-four thousand, four hundred eighty-one".

Divisors: 1 1481 3001 4444481