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67873541105 = 513574708221
BaseRepresentation
bin111111001101100101…
…000000101111110001
320111012020001010122202
4333031211000233301
52103001111303410
651103005312545
74621653403016
oct771545005761
9214166033582
1067873541105
112686a932027
12111a2865755
136528a24556
1433dc43d70d
151b73abdca5
hexfcd940bf1

67873541105 has 4 divisors (see below), whose sum is σ = 81448249332. Its totient is φ = 54298832880.

The previous prime is 67873541083. The next prime is 67873541107. The reversal of 67873541105 is 50114537876.

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 45032659681 + 22840881424 = 212209^2 + 151132^2 .

It is not a de Polignac number, because 67873541105 - 210 = 67873540081 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67873541105.

It is not an unprimeable number, because it can be changed into a prime (67873541107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6787354106 + ... + 6787354115.

It is an arithmetic number, because the mean of its divisors is an integer number (20362062333).

Almost surely, 267873541105 is an apocalyptic number.

It is an amenable number.

67873541105 is a deficient number, since it is larger than the sum of its proper divisors (13574708227).

67873541105 is a wasteful number, since it uses less digits than its factorization.

67873541105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13574708226.

The product of its (nonzero) digits is 705600, while the sum is 47.

The spelling of 67873541105 in words is "sixty-seven billion, eight hundred seventy-three million, five hundred forty-one thousand, one hundred five".

Divisors: 1 5 13574708221 67873541105