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68054568 = 23310726501
BaseRepresentation
bin1000000111001…
…10111000101000
311202001112022120
410003212320220
5114410221233
610430351240
71454311551
oct403467050
9152045276
1068054568
113546244a
121a95b520
131113a19a
149077328
155e944b3
hex40e6e28

68054568 has 32 divisors (see below), whose sum is σ = 171732960. Its totient is φ = 22472000.

The previous prime is 68054563. The next prime is 68054573. The reversal of 68054568 is 86545086.

It is an interprime number because it is at equal distance from previous prime (68054563) and next prime (68054573).

It is not an unprimeable number, because it can be changed into a prime (68054563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10683 + ... + 15818.

It is an arithmetic number, because the mean of its divisors is an integer number (5366655).

Almost surely, 268054568 is an apocalyptic number.

It is an amenable number.

68054568 is an abundant number, since it is smaller than the sum of its proper divisors (103678392).

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

68054568 is a wasteful number, since it uses less digits than its factorization.

68054568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26617 (or 26613 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 42.

The square root of 68054568 is about 8249.5192587205. The cubic root of 68054568 is about 408.2746612724.

The spelling of 68054568 in words is "sixty-eight million, fifty-four thousand, five hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 24 107 214 321 428 642 856 1284 2568 26501 53002 79503 106004 159006 212008 318012 636024 2835607 5671214 8506821 11342428 17013642 22684856 34027284 68054568