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67282045 = 514939013
BaseRepresentation
bin1000000001010…
…10010001111101
311200121021121121
410000222101331
5114211011140
610402030541
71444613365
oct400522175
9150537547
1067282045
1134a84aa6
121a648451
1310c2967c
148d159a5
155d9064a
hex402a47d

67282045 has 8 divisors (see below), whose sum is σ = 80801496. Its totient is φ = 53783616.

The previous prime is 67282037. The next prime is 67282049. The reversal of 67282045 is 54028276.

It can be written as a sum of positive squares in 4 ways, for example, as 16216729 + 51065316 = 4027^2 + 7146^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 67282045 - 23 = 67282037 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 67282045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67282049) 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 7 ways as a sum of consecutive naturals, for example, 2959 + ... + 11971.

It is an arithmetic number, because the mean of its divisors is an integer number (10100187).

Almost surely, 267282045 is an apocalyptic number.

It is an amenable number.

67282045 is a deficient number, since it is larger than the sum of its proper divisors (13519451).

67282045 is a wasteful number, since it uses less digits than its factorization.

67282045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10511.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 67282045 is about 8202.5633188656. The cubic root of 67282045 is about 406.7239322593.

The spelling of 67282045 in words is "sixty-seven million, two hundred eighty-two thousand, forty-five".

Divisors: 1 5 1493 7465 9013 45065 13456409 67282045