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68103619 = 197734637
BaseRepresentation
bin1000000111100…
…10110111000011
311202011000121021
410003302313003
5114413303434
610431410311
71454604553
oct403626703
9152130537
1068103619
1135496291
121a983997
13111565cc
14908b163
155ea3cb4
hex40f2dc3

68103619 has 8 divisors (see below), whose sum is σ = 71796240. Its totient is φ = 64421856.

The previous prime is 68103613. The next prime is 68103661. The reversal of 68103619 is 91630186.

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

It is not a de Polignac number, because 68103619 - 213 = 68095427 is a prime.

It is a super-2 number, since 2×681036192 = 9276205841794322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68103613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12369 + ... + 17005.

It is an arithmetic number, because the mean of its divisors is an integer number (8974530).

Almost surely, 268103619 is an apocalyptic number.

68103619 is a deficient number, since it is larger than the sum of its proper divisors (3692621).

68103619 is a wasteful number, since it uses less digits than its factorization.

68103619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5429.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 68103619 is about 8252.4916843339. The cubic root of 68103619 is about 408.3727270430.

The spelling of 68103619 in words is "sixty-eight million, one hundred three thousand, six hundred nineteen".

Divisors: 1 19 773 4637 14687 88103 3584401 68103619