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68238574 = 2593491657
BaseRepresentation
bin1000001000100…
…11110011101110
311202101212201121
410010103303232
5114432113244
610434331154
71456006165
oct404236356
9152355647
1068238574
1135578718
121aa29aba
13111a2b71
1490c43dc
155ecdc84
hex4113cee

68238574 has 16 divisors (see below), whose sum is σ = 104454000. Its totient is φ = 33424704.

The previous prime is 68238551. The next prime is 68238587. The reversal of 68238574 is 47583286.

It is a self number, because there is not a number n which added to its sum of digits gives 68238574.

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, 40354 + ... + 42010.

It is an arithmetic number, because the mean of its divisors is an integer number (6528375).

Almost surely, 268238574 is an apocalyptic number.

68238574 is a deficient number, since it is larger than the sum of its proper divisors (36215426).

68238574 is a wasteful number, since it uses less digits than its factorization.

68238574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2067.

The product of its digits is 322560, while the sum is 43.

The square root of 68238574 is about 8260.6642590048. The cubic root of 68238574 is about 408.6422945966.

The spelling of 68238574 in words is "sixty-eight million, two hundred thirty-eight thousand, five hundred seventy-four".

Divisors: 1 2 59 118 349 698 1657 3314 20591 41182 97763 195526 578293 1156586 34119287 68238574