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304144413 = 3101381471
BaseRepresentation
bin10010001000001…
…110000000011101
3210012022010200220
4102020032000131
51110330110123
650102511553
710352120256
oct2210160035
9705263626
10304144413
11146755221
1285a355b9
134b01c311
142c571b2d
151ba7bce3
hex1220e01d

304144413 has 4 divisors (see below), whose sum is σ = 405525888. Its totient is φ = 202762940.

The previous prime is 304144409. The next prime is 304144429. The reversal of 304144413 is 314441403.

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 a cyclic number.

It is not a de Polignac number, because 304144413 - 22 = 304144409 is a prime.

It is a super-2 number, since 2×3041444132 = 185007647918229138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304144493) 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, 50690733 + ... + 50690738.

It is an arithmetic number, because the mean of its divisors is an integer number (101381472).

Almost surely, 2304144413 is an apocalyptic number.

It is an amenable number.

304144413 is a deficient number, since it is larger than the sum of its proper divisors (101381475).

304144413 is a wasteful number, since it uses less digits than its factorization.

304144413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101381474.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 304144413 is about 17439.7366092496. The cubic root of 304144413 is about 672.5015366438.

Adding to 304144413 its reverse (314441403), we get a palindrome (618585816).

The spelling of 304144413 in words is "three hundred four million, one hundred forty-four thousand, four hundred thirteen".

Divisors: 1 3 101381471 304144413