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315231502230 = 23255698777019
BaseRepresentation
bin1001001011001010100…
…00101111111110010110
31010010200000200111210100
410211211100233332112
520131043231032410
6400452041034530
731526505362361
oct4454520577626
91103600614710
10315231502230
11111763a68377
1251116485a46
1323959611918
1411385dc90d8
1582ee9a18c0
hex496542ff96

315231502230 has 96 divisors (see below), whose sum is σ = 822095632800. Its totient is φ = 83806373376.

The previous prime is 315231502147. The next prime is 315231502249. The reversal of 315231502230 is 32205132513.

It is a happy number.

315231502230 is a `hidden beast` number, since 3 + 152 + 3 + 1 + 502 + 2 + 3 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 315231502194 and 315231502203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44907661 + ... + 44914679.

It is an arithmetic number, because the mean of its divisors is an integer number (8563496175).

Almost surely, 2315231502230 is an apocalyptic number.

315231502230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

315231502230 is an abundant number, since it is smaller than the sum of its proper divisors (506864130570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

315231502230 is a wasteful number, since it uses less digits than its factorization.

315231502230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8478 (or 8475 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 315231502230 its reverse (32205132513), we get a palindrome (347436634743).

The spelling of 315231502230 in words is "three hundred fifteen billion, two hundred thirty-one million, five hundred two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 569 877 1138 1707 1754 2631 2845 3414 4385 5121 5262 5690 7019 7893 8535 8770 10242 13155 14038 15786 17070 21057 25605 26310 35095 39465 42114 51210 63171 70190 78930 105285 126342 210570 315855 499013 631710 998026 1497039 2495065 2994078 3993811 4491117 4990130 6155663 7485195 7987622 8982234 11981433 12311326 14970390 18466989 19969055 22455585 23962866 30778315 35944299 36933978 39938110 44911170 55400967 59907165 61556630 71888598 92334945 110801934 119814330 179721495 184669890 277004835 359442990 554009670 3502572247 7005144494 10507716741 17512861235 21015433482 31523150223 35025722470 52538583705 63046300446 105077167410 157615751115 315231502230