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68342867 = 1923433637
BaseRepresentation
bin1000001001011…
…01010001010011
311202121011210022
410010231101103
5114443432432
610440454055
71456622225
oct404552123
9152534708
1068342867
113563a00a
121aa7a32b
131120b488
149110415
155eeeb12
hex412d453

68342867 has 16 divisors (see below), whose sum is σ = 76834560. Its totient is φ = 60473952.

The previous prime is 68342863. The next prime is 68342887. The reversal of 68342867 is 76824386.

It is a cyclic number.

It is not a de Polignac number, because 68342867 - 22 = 68342863 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68342863) 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 15 ways as a sum of consecutive naturals, for example, 16973 + ... + 20609.

It is an arithmetic number, because the mean of its divisors is an integer number (4802160).

Almost surely, 268342867 is an apocalyptic number.

68342867 is a deficient number, since it is larger than the sum of its proper divisors (8491693).

68342867 is a wasteful number, since it uses less digits than its factorization.

68342867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3722.

The product of its digits is 387072, while the sum is 44.

The square root of 68342867 is about 8266.9744767962. The cubic root of 68342867 is about 408.8503725923.

The spelling of 68342867 in words is "sixty-eight million, three hundred forty-two thousand, eight hundred sixty-seven".

Divisors: 1 19 23 43 437 817 989 3637 18791 69103 83651 156391 1589369 2971429 3596993 68342867