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304311401431 = 1922357164187
BaseRepresentation
bin1000110110110100101…
…11110111101111010111
31002002110222120220122121
410123122113313233113
514441212204321211
6351444305240411
730662056142662
oct4333227675727
91062428526577
10304311401431
1110806a941a84
124ab89333107
132290911080b
1410a2b9966d9
157db0e46271
hex46da5f7bd7

304311401431 has 24 divisors (see below), whose sum is σ = 335726861184. Its totient is φ = 275273214480.

The previous prime is 304311401413. The next prime is 304311401437. The reversal of 304311401431 is 134104113403.

It is a happy number.

It is not a de Polignac number, because 304311401431 - 29 = 304311400919 is a prime.

It is a super-2 number, since 2×3043114014312 (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 = 304311401396 and 304311401405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304311401437) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4708920 + ... + 4773106.

It is an arithmetic number, because the mean of its divisors is an integer number (13988619216).

Almost surely, 2304311401431 is an apocalyptic number.

304311401431 is a deficient number, since it is larger than the sum of its proper divisors (31415459753).

304311401431 is a wasteful number, since it uses less digits than its factorization.

304311401431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64819 (or 64800 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 304311401431 its reverse (134104113403), we get a palindrome (438415514834).

The spelling of 304311401431 in words is "three hundred four billion, three hundred eleven million, four hundred one thousand, four hundred thirty-one".

Divisors: 1 19 23 361 437 571 8303 10849 13133 64187 206131 249527 1219553 1476301 4741013 23171507 28049719 36650777 532944661 696364763 842967871 13230930497 16016389549 304311401431