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444102541 = 1669266089
BaseRepresentation
bin11010011110000…
…111011110001101
31010221122202011021
4122132013132031
51402142240131
6112022354141
714001544411
oct3236073615
91127582137
10444102541
112087588a3
1210488b951
137101358c
1442da4d41
1528ec5e11
hex1a78778d

444102541 has 4 divisors (see below), whose sum is σ = 444370300. Its totient is φ = 443834784.

The previous prime is 444102521. The next prime is 444102551. The reversal of 444102541 is 145201444.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 268009641 + 176092900 = 16371^2 + 13270^2 .

It is a cyclic number.

It is not a de Polignac number, because 444102541 - 27 = 444102413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444102511) 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 3 ways as a sum of consecutive naturals, for example, 131376 + ... + 134713.

It is an arithmetic number, because the mean of its divisors is an integer number (111092575).

Almost surely, 2444102541 is an apocalyptic number.

It is an amenable number.

444102541 is a deficient number, since it is larger than the sum of its proper divisors (267759).

444102541 is a wasteful number, since it uses less digits than its factorization.

444102541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267758.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 444102541 is about 21073.7405554875. The cubic root of 444102541 is about 762.9470872957.

Adding to 444102541 its reverse (145201444), we get a palindrome (589303985).

The spelling of 444102541 in words is "four hundred forty-four million, one hundred two thousand, five hundred forty-one".

Divisors: 1 1669 266089 444102541