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4144481 = 111737599
BaseRepresentation
bin1111110011110101100001
321210120011022
433303311201
52030110411
6224455225
750141015
oct17636541
97716138
104144481
1123808a0
12147a515
13b21573
1479c545
1556cedb
hex3f3d61

4144481 has 16 divisors (see below), whose sum is σ = 4924800. Its totient is φ = 3444480.

The previous prime is 4144471. The next prime is 4144487. The reversal of 4144481 is 1844414.

4144481 = T110 + T111 + ... + T296.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 4144481 - 214 = 4128097 is a prime.

It is a super-2 number, since 2×41444812 = 34353445518722, which contains 22 as substring.

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 4144481.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4144487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6620 + ... + 7218.

It is an arithmetic number, because the mean of its divisors is an integer number (307800).

Almost surely, 24144481 is an apocalyptic number.

It is an amenable number.

4144481 is a deficient number, since it is larger than the sum of its proper divisors (780319).

4144481 is a wasteful number, since it uses less digits than its factorization.

4144481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664.

The product of its digits is 2048, while the sum is 26.

The square root of 4144481 is about 2035.7998428136. The cubic root of 4144481 is about 160.6287886887.

Adding to 4144481 its reverse (1844414), we get a palindrome (5988895).

The spelling of 4144481 in words is "four million, one hundred forty-four thousand, four hundred eighty-one".

Divisors: 1 11 17 37 187 407 599 629 6589 6919 10183 22163 112013 243793 376771 4144481