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68290080878 = 259875703197
BaseRepresentation
bin111111100110011001…
…111111000001101110
320112021020211112210202
4333212121333001232
52104324230042003
651212205233502
74635202052465
oct774631770156
9215236745722
1068290080878
1126a63a74578
121129a262892
1365941072a6
14343b8ab9dc
151b9a44d088
hexfe667f06e

68290080878 has 8 divisors (see below), whose sum is σ = 102452248872. Its totient is φ = 34139331256.

The previous prime is 68290080869. The next prime is 68290080899. The reversal of 68290080878 is 87808009286.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2839625 + ... + 2863572.

It is an arithmetic number, because the mean of its divisors is an integer number (12806531109).

Almost surely, 268290080878 is an apocalyptic number.

68290080878 is a deficient number, since it is larger than the sum of its proper divisors (34162167994).

68290080878 is a wasteful number, since it uses less digits than its factorization.

68290080878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5709186.

The product of its (nonzero) digits is 3096576, while the sum is 56.

The spelling of 68290080878 in words is "sixty-eight billion, two hundred ninety million, eighty thousand, eight hundred seventy-eight".

Divisors: 1 2 5987 11974 5703197 11406394 34145040439 68290080878