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68738758 = 21129107741
BaseRepresentation
bin1000001100011…
…01111011000110
311210100021211221
410012031323012
5120044120013
610453150554
71463161354
oct406157306
9153307757
1068738758
113588a4a0
121b02b45a
131131972a
1491b47d4
15607c08d
hex418dec6

68738758 has 16 divisors (see below), whose sum is σ = 116361360. Its totient is φ = 30167200.

The previous prime is 68738753. The next prime is 68738773. The reversal of 68738758 is 85783786.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68738753) by changing a digit.

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, 53233 + ... + 54508.

It is an arithmetic number, because the mean of its divisors is an integer number (7272585).

Almost surely, 268738758 is an apocalyptic number.

68738758 is a deficient number, since it is larger than the sum of its proper divisors (47622602).

68738758 is a wasteful number, since it uses less digits than its factorization.

68738758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107783.

The product of its digits is 2257920, while the sum is 52.

The square root of 68738758 is about 8290.8840300658. The cubic root of 68738758 is about 409.6383048474.

It can be divided in two parts, 68738 and 758, that added together give a palindrome (69496).

The spelling of 68738758 in words is "sixty-eight million, seven hundred thirty-eight thousand, seven hundred fifty-eight".

Divisors: 1 2 11 22 29 58 319 638 107741 215482 1185151 2370302 3124489 6248978 34369379 68738758