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68171310 = 23252332933
BaseRepresentation
bin1000001000000…
…11011000101110
311202021110110100
410010003120232
5114422440220
610433051530
71455306114
oct404033056
9152243410
1068171310
1135532129
121a9b6ba6
131117b36c
1490a7ab4
155eb8d90
hex410362e

68171310 has 48 divisors (see below), whose sum is σ = 184957344. Its totient is φ = 17388096.

The previous prime is 68171293. The next prime is 68171329. The reversal of 68171310 is 1317186.

It is a super-2 number, since 2×681713102 = 9294655014232200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14397 + ... + 18536.

It is an arithmetic number, because the mean of its divisors is an integer number (3853278).

Almost surely, 268171310 is an apocalyptic number.

68171310 is an abundant number, since it is smaller than the sum of its proper divisors (116786034).

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

68171310 is a wasteful number, since it uses less digits than its factorization.

68171310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32969 (or 32966 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 68171310 is about 8256.5919119210. The cubic root of 68171310 is about 408.5079817484.

Adding to 68171310 its reverse (1317186), we get a palindrome (69488496).

The spelling of 68171310 in words is "sixty-eight million, one hundred seventy-one thousand, three hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 23 30 45 46 69 90 115 138 207 230 345 414 690 1035 2070 32933 65866 98799 164665 197598 296397 329330 493995 592794 757459 987990 1481985 1514918 2272377 2963970 3787295 4544754 6817131 7574590 11361885 13634262 22723770 34085655 68171310