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304130123 = 1127648193
BaseRepresentation
bin10010001000001…
…010100001001011
3210012021102002122
4102020022201023
51110324130443
650102321455
710352030513
oct2210124113
9705242078
10304130123
11146745510
1285a2928b
134b01596b
142c56a843
151ba77968
hex1220a84b

304130123 has 4 divisors (see below), whose sum is σ = 331778328. Its totient is φ = 276481920.

The previous prime is 304130111. The next prime is 304130147. The reversal of 304130123 is 321031403.

It is a happy number.

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

It is not a de Polignac number, because 304130123 - 216 = 304064587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (304130423) 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, 13824086 + ... + 13824107.

It is an arithmetic number, because the mean of its divisors is an integer number (82944582).

Almost surely, 2304130123 is an apocalyptic number.

304130123 is a deficient number, since it is larger than the sum of its proper divisors (27648205).

304130123 is a wasteful number, since it uses less digits than its factorization.

304130123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27648204.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 304130123 is about 17439.3269078827. The cubic root of 304130123 is about 672.4910041499.

Adding to 304130123 its reverse (321031403), we get a palindrome (625161526).

The spelling of 304130123 in words is "three hundred four million, one hundred thirty thousand, one hundred twenty-three".

Divisors: 1 11 27648193 304130123