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730230450831 = 3471567821879
BaseRepresentation
bin10101010000001010010…
…00000110101010001111
32120210212000102102020000
422220011020012222033
543431002443411311
61315244020455343
7103520535263460
oct12500510065217
92523760372200
10730230450831
11261764063862
12b963484a553
1353b254bb57b
14274b41bad67
1513edd053056
hexaa05206a8f

730230450831 has 40 divisors (see below), whose sum is σ = 1247469189120. Its totient is φ = 417007747152.

The previous prime is 730230450811. The next prime is 730230450839. The reversal of 730230450831 is 138054032037.

It is not a de Polignac number, because 730230450831 - 26 = 730230450767 is a prime.

It is a super-2 number, since 2×7302304508312 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730230450839) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 477550 + ... + 1299428.

It is an arithmetic number, because the mean of its divisors is an integer number (31186729728).

Almost surely, 2730230450831 is an apocalyptic number.

730230450831 is a deficient number, since it is larger than the sum of its proper divisors (517238738289).

730230450831 is a wasteful number, since it uses less digits than its factorization.

730230450831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823465 (or 823456 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

Adding to 730230450831 its reverse (138054032037), we get a palindrome (868284482868).

The spelling of 730230450831 in words is "seven hundred thirty billion, two hundred thirty million, four hundred fifty thousand, eight hundred thirty-one".

Divisors: 1 3 7 9 21 27 63 81 189 567 1567 4701 10969 14103 32907 42309 98721 126927 296163 821879 888489 2465637 5753153 7396911 17259459 22190733 51778377 66572199 155335131 466005393 1287884393 3863653179 9015190751 11590959537 27045572253 34772878611 81136716759 104318635833 243410150277 730230450831