Search a number
-
+
331302230 = 25721096203
BaseRepresentation
bin10011101111110…
…100010101010110
3212002101220012222
4103233310111112
51134303132410
652512542342
711132010500
oct2357642526
9762356188
10331302230
111600142a6
1292b519b2
135383a72c
1432000d70
151e143955
hex13bf4556

331302230 has 48 divisors (see below), whose sum is σ = 700183440. Its totient is φ = 112529088.

The previous prime is 331302217. The next prime is 331302241. The reversal of 331302230 is 32203133.

It is a super-2 number, since 2×3313022302 = 219522335205945800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331302199 and 331302208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50309 + ... + 56511.

It is an arithmetic number, because the mean of its divisors is an integer number (14587155).

Almost surely, 2331302230 is an apocalyptic number.

331302230 is an abundant number, since it is smaller than the sum of its proper divisors (368881210).

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

331302230 is a wasteful number, since it uses less digits than its factorization.

331302230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6333 (or 6326 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 331302230 is about 18201.7095350959. The cubic root of 331302230 is about 691.9501158535.

Adding to 331302230 its reverse (32203133), we get a palindrome (363505363).

The spelling of 331302230 in words is "three hundred thirty-one million, three hundred two thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 49 70 98 109 218 245 490 545 763 1090 1526 3815 5341 6203 7630 10682 12406 26705 31015 43421 53410 62030 86842 217105 303947 434210 607894 676127 1352254 1519735 3039470 3380635 4732889 6761270 9465778 23664445 33130223 47328890 66260446 165651115 331302230