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304047413 = 2111440983
BaseRepresentation
bin10010000111110…
…110010100110101
3210012010012122022
4102013312110311
51110314004123
650100442525
710351234415
oct2207662465
9705105568
10304047413
1114669935a
12859a9445
134acb7117
142c548645
151ba5d1c8
hex121f6535

304047413 has 4 divisors (see below), whose sum is σ = 305488608. Its totient is φ = 302606220.

The previous prime is 304047391. The next prime is 304047421. The reversal of 304047413 is 314740403.

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, and also an emirpimes, since its reverse is a distinct semiprime: 314740403 = 392980107.

It is a cyclic number.

It is not a de Polignac number, because 304047413 - 28 = 304047157 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 (304047433) 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, 720281 + ... + 720702.

It is an arithmetic number, because the mean of its divisors is an integer number (76372152).

Almost surely, 2304047413 is an apocalyptic number.

It is an amenable number.

304047413 is a deficient number, since it is larger than the sum of its proper divisors (1441195).

304047413 is a wasteful number, since it uses less digits than its factorization.

304047413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441194.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 304047413 is about 17436.9553821761. The cubic root of 304047413 is about 672.4300359768.

Adding to 304047413 its reverse (314740403), we get a palindrome (618787816).

The spelling of 304047413 in words is "three hundred four million, forty-seven thousand, four hundred thirteen".

Divisors: 1 211 1440983 304047413