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68204270 = 2519335339
BaseRepresentation
bin1000001000010…
…11011011101110
311202100010200002
410010023123232
5114430014040
610433504302
71455504161
oct404133356
9152303602
1068204270
1135554972
121aa12092
1311190374
1490b5ad8
155ec3a15
hex410b6ee

68204270 has 16 divisors (see below), whose sum is σ = 123407280. Its totient is φ = 27139584.

The previous prime is 68204267. The next prime is 68204291. The reversal of 68204270 is 7240286.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15740 + ... + 19599.

It is an arithmetic number, because the mean of its divisors is an integer number (7712955).

Almost surely, 268204270 is an apocalyptic number.

68204270 is a deficient number, since it is larger than the sum of its proper divisors (55203010).

68204270 is a wasteful number, since it uses less digits than its factorization.

68204270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35539.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 68204270 is about 8258.5876516509. The cubic root of 68204270 is about 408.5738073559.

The spelling of 68204270 in words is "sixty-eight million, two hundred four thousand, two hundred seventy".

Divisors: 1 2 5 10 193 386 965 1930 35339 70678 176695 353390 6820427 13640854 34102135 68204270