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68080319826 = 2340012835971
BaseRepresentation
bin111111011001111001…
…110011110101010010
320111201122010120201220
4333121321303311102
52103412030213301
651135313305510
74630044112311
oct773171636522
9214648116656
1068080319826
1126966624a32
121123bb65296
13655c81311c
14341baa8278
151b86d16936
hexfd9e73d52

68080319826 has 16 divisors (see below), whose sum is σ = 136194719328. Its totient is φ = 22687760000.

The previous prime is 68080319779. The next prime is 68080319831. The reversal of 68080319826 is 62891308086.

It is a super-2 number, since 2×680803198262 (a number of 22 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 1393980 + ... + 1441991.

It is an arithmetic number, because the mean of its divisors is an integer number (8512169958).

Almost surely, 268080319826 is an apocalyptic number.

68080319826 is an abundant number, since it is smaller than the sum of its proper divisors (68114399502).

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

68080319826 is a wasteful number, since it uses less digits than its factorization.

68080319826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2839977.

The product of its (nonzero) digits is 995328, while the sum is 51.

The spelling of 68080319826 in words is "sixty-eight billion, eighty million, three hundred nineteen thousand, eight hundred twenty-six".

Divisors: 1 2 3 6 4001 8002 12003 24006 2835971 5671942 8507913 17015826 11346719971 22693439942 34040159913 68080319826