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68182331250 = 23551119127137
BaseRepresentation
bin111111011111111110…
…111100111101110010
320111222202002022002210
4333133332330331302
52104114134100000
651153355552550
74632423152565
oct773776747562
9214882068083
1068182331250
1126a0916a6a0
121126a15b756
1365779ac307
14342b4604dc
151b90c67350
hexfdffbcf72

68182331250 has 384 divisors, whose sum is σ = 198707281920. Its totient is φ = 15422400000.

The previous prime is 68182331227. The next prime is 68182331257. The reversal of 68182331250 is 5213328186.

It is a junction number, because it is equal to n+sod(n) for n = 68182331199 and 68182331208.

It is not an unprimeable number, because it can be changed into a prime (68182331257) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 497681182 + ... + 497681318.

It is an arithmetic number, because the mean of its divisors is an integer number (517466880).

Almost surely, 268182331250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68182331250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99353640960).

68182331250 is an abundant number, since it is smaller than the sum of its proper divisors (130524950670).

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

68182331250 is a wasteful number, since it uses less digits than its factorization.

68182331250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324 (or 304 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 68182331250 in words is "sixty-eight billion, one hundred eighty-two million, three hundred thirty-one thousand, two hundred fifty".