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304304030431 = 431392366277
BaseRepresentation
bin1000110110110011110…
…11110000001011011111
31002002110110201102112121
410123121323300023133
514441203312433211
6351443443243411
730661636403122
oct4333173601337
91062413642477
10304304030431
11108066768045
124ab86979567
132290772c78b
1410a2a9d83b9
157db048c271
hex46d9ef02df

304304030431 has 12 divisors (see below), whose sum is σ = 313637990952. Its totient is φ = 295088061744.

The previous prime is 304304030357. The next prime is 304304030449. The reversal of 304304030431 is 134030403403.

It is not a de Polignac number, because 304304030431 - 221 = 304301933279 is a prime.

It is a super-2 number, since 2×3043040304312 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 304304030396 and 304304030405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304304030461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 647665 + ... + 1013941.

It is an arithmetic number, because the mean of its divisors is an integer number (26136499246).

Almost surely, 2304304030431 is an apocalyptic number.

304304030431 is a deficient number, since it is larger than the sum of its proper divisors (9333960521).

304304030431 is an equidigital number, since it uses as much as digits as its factorization.

304304030431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366598 (or 366459 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 304304030431 its reverse (134030403403), we get a palindrome (438334433834).

The spelling of 304304030431 in words is "three hundred four billion, three hundred four million, thirty thousand, four hundred thirty-one".

Divisors: 1 43 139 5977 19321 366277 830803 15749911 50912503 2189237629 7076837917 304304030431