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68046173 = 135234321
BaseRepresentation
bin1000000111001…
…00110101011101
311202001002210122
410003210311131
5114404434143
610430244325
71454245226
oct403446535
9152032718
1068046173
1135457108
121a9566a5
1311136410
14907424d
155e91c68
hex40e4d5d

68046173 has 4 divisors (see below), whose sum is σ = 73280508. Its totient is φ = 62811840.

The previous prime is 68046161. The next prime is 68046191. The reversal of 68046173 is 37164086.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14273284 + 53772889 = 3778^2 + 7333^2 .

It is not a de Polignac number, because 68046173 - 212 = 68042077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68046113) 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 3 ways as a sum of consecutive naturals, for example, 2617148 + ... + 2617173.

It is an arithmetic number, because the mean of its divisors is an integer number (18320127).

Almost surely, 268046173 is an apocalyptic number.

It is an amenable number.

68046173 is a deficient number, since it is larger than the sum of its proper divisors (5234335).

68046173 is a wasteful number, since it uses less digits than its factorization.

68046173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5234334.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 68046173 is about 8249.0104254995. The cubic root of 68046173 is about 408.2578727510.

The spelling of 68046173 in words is "sixty-eight million, forty-six thousand, one hundred seventy-three".

Divisors: 1 13 5234321 68046173