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68066774 = 267507961
BaseRepresentation
bin1000000111010…
…01110111010110
311202002011001122
410003221313112
5114411114044
610430523542
71454362256
oct403516726
9152064048
1068066774
1135470636
121a9665b2
13111428c9
14907b966
155e97dee
hex40e9dd6

68066774 has 8 divisors (see below), whose sum is σ = 103624248. Its totient is φ = 33525360.

The previous prime is 68066773. The next prime is 68066783. The reversal of 68066774 is 47766086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68066773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253847 + ... + 254114.

It is an arithmetic number, because the mean of its divisors is an integer number (12953031).

Almost surely, 268066774 is an apocalyptic number.

68066774 is a deficient number, since it is larger than the sum of its proper divisors (35557474).

68066774 is a wasteful number, since it uses less digits than its factorization.

68066774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508030.

The product of its (nonzero) digits is 338688, while the sum is 44.

The square root of 68066774 is about 8250.2590262367. The cubic root of 68066774 is about 408.2990686598.

The spelling of 68066774 in words is "sixty-eight million, sixty-six thousand, seven hundred seventy-four".

Divisors: 1 2 67 134 507961 1015922 34033387 68066774