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68740874 = 2167277743
BaseRepresentation
bin1000001100011…
…10011100001010
311210100101202022
410012032130022
5120044201444
610453204442
71463200466
oct406163412
9153311668
1068740874
1135891044
121b030722
131131a697
1491b54a6
15607c9ee
hex418e70a

68740874 has 16 divisors (see below), whose sum is σ = 104243328. Its totient is φ = 33995472.

The previous prime is 68740873. The next prime is 68740891. The reversal of 68740874 is 47804786.

It is not an unprimeable number, because it can be changed into a prime (68740873) 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, 92147 + ... + 92889.

It is an arithmetic number, because the mean of its divisors is an integer number (6515208).

Almost surely, 268740874 is an apocalyptic number.

68740874 is a deficient number, since it is larger than the sum of its proper divisors (35502454).

68740874 is a wasteful number, since it uses less digits than its factorization.

68740874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189.

The product of its (nonzero) digits is 301056, while the sum is 44.

The square root of 68740874 is about 8291.0116391186. The cubic root of 68740874 is about 409.6425081324.

The spelling of 68740874 in words is "sixty-eight million, seven hundred forty thousand, eight hundred seventy-four".

Divisors: 1 2 167 277 334 554 743 1486 46259 92518 124081 205811 248162 411622 34370437 68740874