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68878714190 = 2511131737731049
BaseRepresentation
bin100000000100101111…
…1011100010101001110
320120210021110012220112
41000021133130111032
52112030422323230
651350433520022
74655610260546
oct1001137342516
9216707405815
1068878714190
1127236269490
1211423413012
136659053220
143495b36326
151bd1e72d95
hex10097dc54e

68878714190 has 256 divisors, whose sum is σ = 160715923200. Its totient is φ = 20862074880.

The previous prime is 68878714183. The next prime is 68878714211. The reversal of 68878714190 is 9141787886.

It is a super-2 number, since 2×688787141902 (a number of 22 digits) contains 22 as substring.

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 127 ways as a sum of consecutive naturals, for example, 65660786 + ... + 65661834.

It is an arithmetic number, because the mean of its divisors is an integer number (627796575).

Almost surely, 268878714190 is an apocalyptic number.

68878714190 is an abundant number, since it is smaller than the sum of its proper divisors (91837209010).

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

68878714190 is a wasteful number, since it uses less digits than its factorization.

68878714190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207.

The product of its (nonzero) digits is 5419008, while the sum is 59.

The spelling of 68878714190 in words is "sixty-eight billion, eight hundred seventy-eight million, seven hundred fourteen thousand, one hundred ninety".