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304230314021 = 2141914203759
BaseRepresentation
bin1000110110101011000…
…10100011000000100101
31002002021100000020122012
410123111202203000211
514441030430022041
6351432251244005
730660053000354
oct4332542430045
91062240006565
10304230314021
11108029098897
124ab66149605
13228c538c4ba
1410a20cc999b
157da8c7a3eb
hex46d58a3025

304230314021 has 4 divisors (see below), whose sum is σ = 304244539200. Its totient is φ = 304216088844.

The previous prime is 304230314009. The next prime is 304230314023. The reversal of 304230314021 is 120413032403.

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: 120413032403 = 942112781343.

It is a cyclic number.

It is not a de Polignac number, because 304230314021 - 218 = 304230051877 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 (304230314023) 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, 7080461 + ... + 7123298.

It is an arithmetic number, because the mean of its divisors is an integer number (76061134800).

Almost surely, 2304230314021 is an apocalyptic number.

It is an amenable number.

304230314021 is a deficient number, since it is larger than the sum of its proper divisors (14225179).

304230314021 is a wasteful number, since it uses less digits than its factorization.

304230314021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14225178.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 304230314021 its reverse (120413032403), we get a palindrome (424643346424).

The spelling of 304230314021 in words is "three hundred four billion, two hundred thirty million, three hundred fourteen thousand, twenty-one".

Divisors: 1 21419 14203759 304230314021