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68201743 = 359189977
BaseRepresentation
bin1000001000010…
…10110100001111
311202100000012111
410010022310033
5114424423433
610433444451
71455463621
oct404126417
9152300174
1068201743
1135552a85
121aa10727
131118c17c
1490b4c11
155ec2dcd
hex410ad0f

68201743 has 4 divisors (see below), whose sum is σ = 68392080. Its totient is φ = 68011408.

The previous prime is 68201729. The next prime is 68201789. The reversal of 68201743 is 34710286.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68201743 - 25 = 68201711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68201713) 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 3 ways as a sum of consecutive naturals, for example, 94630 + ... + 95347.

It is an arithmetic number, because the mean of its divisors is an integer number (17098020).

Almost surely, 268201743 is an apocalyptic number.

68201743 is a deficient number, since it is larger than the sum of its proper divisors (190337).

68201743 is a wasteful number, since it uses less digits than its factorization.

68201743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190336.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 68201743 is about 8258.4346579724. The cubic root of 68201743 is about 408.5687613436.

The spelling of 68201743 in words is "sixty-eight million, two hundred one thousand, seven hundred forty-three".

Divisors: 1 359 189977 68201743