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68797642 = 2253113591
BaseRepresentation
bin1000001100111…
…00010011001010
311210110021121211
410012130103022
5120103011032
610454323334
71463525134
oct406342312
9153407554
1068797642
113591a761
121b05954a
131133a484
1491cc054
15608e747
hex419c4ca

68797642 has 8 divisors (see below), whose sum is σ = 103244832. Its totient is φ = 34382700.

The previous prime is 68797637. The next prime is 68797643. The reversal of 68797642 is 24679786.

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

It is not an unprimeable number, because it can be changed into a prime (68797643) 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, 1734 + ... + 11857.

It is an arithmetic number, because the mean of its divisors is an integer number (12905604).

Almost surely, 268797642 is an apocalyptic number.

68797642 is a deficient number, since it is larger than the sum of its proper divisors (34447190).

68797642 is a wasteful number, since it uses less digits than its factorization.

68797642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16124.

The product of its digits is 1016064, while the sum is 49.

The square root of 68797642 is about 8294.4343990413. The cubic root of 68797642 is about 409.7552415813.

The spelling of 68797642 in words is "sixty-eight million, seven hundred ninety-seven thousand, six hundred forty-two".

Divisors: 1 2 2531 5062 13591 27182 34398821 68797642