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68067359 = 71939463
BaseRepresentation
bin1000000111010…
…10000000011111
311202002011212022
410003222000133
5114411123414
610430530355
71454364053
oct403520037
9152064768
1068067359
1135471018
121a9669bb
1311142c59
14907bc63
155e9818e
hex40ea01f

68067359 has 4 divisors (see below), whose sum is σ = 68084016. Its totient is φ = 68050704.

The previous prime is 68067347. The next prime is 68067361. The reversal of 68067359 is 95376086.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-68067359 is a prime.

It is a super-2 number, since 2×680673592 = 9266330722469762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68067319) 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, 2462 + ... + 11924.

It is an arithmetic number, because the mean of its divisors is an integer number (17021004).

Almost surely, 268067359 is an apocalyptic number.

68067359 is a deficient number, since it is larger than the sum of its proper divisors (16657).

68067359 is an equidigital number, since it uses as much as digits as its factorization.

68067359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16656.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 68067359 is about 8250.2944795928. The cubic root of 68067359 is about 408.3002383655.

The spelling of 68067359 in words is "sixty-eight million, sixty-seven thousand, three hundred fifty-nine".

Divisors: 1 7193 9463 68067359