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67842973 = 1131198953
BaseRepresentation
bin1000000101100…
…11001110011101
311201122210001201
410002303032131
5114331433343
610422035501
71452440632
oct402631635
9151583051
1067842973
1135328480
121a878b91
1311094a93
149020189
155e5194d
hex40b339d

67842973 has 8 divisors (see below), whose sum is σ = 76398336. Its totient is φ = 59685600.

The previous prime is 67842967. The next prime is 67842989. The reversal of 67842973 is 37924876.

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 67842973 - 221 = 65745821 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 (67842923) 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, 99136 + ... + 99817.

It is an arithmetic number, because the mean of its divisors is an integer number (9549792).

Almost surely, 267842973 is an apocalyptic number.

It is an amenable number.

67842973 is a deficient number, since it is larger than the sum of its proper divisors (8555363).

67842973 is a wasteful number, since it uses less digits than its factorization.

67842973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198995.

The product of its digits is 508032, while the sum is 46.

The square root of 67842973 is about 8236.6845878666. The cubic root of 67842973 is about 407.8510866431.

The spelling of 67842973 in words is "sixty-seven million, eight hundred forty-two thousand, nine hundred seventy-three".

Divisors: 1 11 31 341 198953 2188483 6167543 67842973