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68342163 = 322780721
BaseRepresentation
bin1000001001011…
…01000110010011
311202121010211020
410010231012103
5114443422123
610440450523
71456620201
oct404550623
9152533736
1068342163
113563952a
121aa79a43
131120b066
149110071
155eee7e3
hex412d193

68342163 has 4 divisors (see below), whose sum is σ = 91122888. Its totient is φ = 45561440.

The previous prime is 68342111. The next prime is 68342167. The reversal of 68342163 is 36124386.

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 68342163 - 28 = 68341907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68342167) 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, 11390358 + ... + 11390363.

It is an arithmetic number, because the mean of its divisors is an integer number (22780722).

Almost surely, 268342163 is an apocalyptic number.

68342163 is a deficient number, since it is larger than the sum of its proper divisors (22780725).

68342163 is a wasteful number, since it uses less digits than its factorization.

68342163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22780724.

The product of its digits is 20736, while the sum is 33.

The square root of 68342163 is about 8266.9318976268. The cubic root of 68342163 is about 408.8489687313.

The spelling of 68342163 in words is "sixty-eight million, three hundred forty-two thousand, one hundred sixty-three".

Divisors: 1 3 22780721 68342163