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440013241 = 8914933181
BaseRepresentation
bin11010001110100…
…001000110111001
31010122221222200201
4122032201012321
51400120410431
6111355002201
713622023303
oct3216410671
91118858621
10440013241
11206415508
12103439361
1370211185
144261c973
1528969461
hex1a3a11b9

440013241 has 8 divisors (see below), whose sum is σ = 447957000. Its totient is φ = 432136320.

The previous prime is 440013181. The next prime is 440013247. The reversal of 440013241 is 142310044.

It can be written as a sum of positive squares in 4 ways, for example, as 230400 + 439782841 = 480^2 + 20971^2 .

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 440013241 - 27 = 440013113 is a prime.

It is a super-2 number, since 2×4400132412 = 387223304510648162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440013247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3330 + ... + 29851.

It is an arithmetic number, because the mean of its divisors is an integer number (55994625).

Almost surely, 2440013241 is an apocalyptic number.

It is an amenable number.

440013241 is a deficient number, since it is larger than the sum of its proper divisors (7943759).

440013241 is a wasteful number, since it uses less digits than its factorization.

440013241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33419.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 440013241 is about 20976.4925809822. The cubic root of 440013241 is about 760.5981216051.

Adding to 440013241 its reverse (142310044), we get a palindrome (582323285).

The spelling of 440013241 in words is "four hundred forty million, thirteen thousand, two hundred forty-one".

Divisors: 1 89 149 13261 33181 2953109 4943969 440013241