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304440141 = 3101480047
BaseRepresentation
bin10010001001010…
…110001101001101
3210012212011100210
4102021112031031
51110414041031
650113113033
710354461405
oct2211261515
9705764323
10304440141
11146937425
1285b58779
134b0c3ac5
142c60b805
151bad9746
hex1225634d

304440141 has 4 divisors (see below), whose sum is σ = 405920192. Its totient is φ = 202960092.

The previous prime is 304440139. The next prime is 304440151. The reversal of 304440141 is 141044403.

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 not a de Polignac number, because 304440141 - 21 = 304440139 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 (304440151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50740021 + ... + 50740026.

It is an arithmetic number, because the mean of its divisors is an integer number (101480048).

Almost surely, 2304440141 is an apocalyptic number.

It is an amenable number.

304440141 is a deficient number, since it is larger than the sum of its proper divisors (101480051).

304440141 is a wasteful number, since it uses less digits than its factorization.

304440141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101480050.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 304440141 is about 17448.2131176806. The cubic root of 304440141 is about 672.7194299676.

Adding to 304440141 its reverse (141044403), we get a palindrome (445484544).

The spelling of 304440141 in words is "three hundred four million, four hundred forty thousand, one hundred forty-one".

Divisors: 1 3 101480047 304440141