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4441381 = 7634483
BaseRepresentation
bin10000111100010100100101
322100122102121
4100330110211
52114111011
6235105541
752515430
oct20742445
98318377
104441381
11256396a
1215a22b1
13bc6749
14838817
155cae71
hex43c525

4441381 has 4 divisors (see below), whose sum is σ = 5075872. Its totient is φ = 3806892.

The previous prime is 4441361. The next prime is 4441387. The reversal of 4441381 is 1831444.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4441381 - 219 = 3917093 is a prime.

It is a super-2 number, since 2×44413812 = 39451730374322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4441387) 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, 317235 + ... + 317248.

It is an arithmetic number, because the mean of its divisors is an integer number (1268968).

Almost surely, 24441381 is an apocalyptic number.

It is an amenable number.

4441381 is a deficient number, since it is larger than the sum of its proper divisors (634491).

4441381 is an equidigital number, since it uses as much as digits as its factorization.

4441381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634490.

The product of its digits is 1536, while the sum is 25.

The square root of 4441381 is about 2107.4584218912. The cubic root of 4441381 is about 164.3763540877.

The spelling of 4441381 in words is "four million, four hundred forty-one thousand, three hundred eighty-one".

Divisors: 1 7 634483 4441381