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67072027 = 11792977
BaseRepresentation
bin1111111111011…
…1000000011011
311200012121112011
43333313000123
5114132301102
610353330351
71443050161
oct377670033
9150177464
1067072027
1134951230
121a5669b7
1310b84bb9
148c9d231
155d4d2d7
hex3ff701b

67072027 has 12 divisors (see below), whose sum is σ = 74183256. Its totient is φ = 60141120.

The previous prime is 67072007. The next prime is 67072037. The reversal of 67072027 is 72027076.

It is not a de Polignac number, because 67072027 - 27 = 67071899 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 67072027.

It is not an unprimeable number, because it can be changed into a prime (67072007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68163 + ... + 69139.

It is an arithmetic number, because the mean of its divisors is an integer number (6181938).

Almost surely, 267072027 is an apocalyptic number.

67072027 is a deficient number, since it is larger than the sum of its proper divisors (7111229).

67072027 is an equidigital number, since it uses as much as digits as its factorization.

67072027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146 (or 1067 counting only the distinct ones).

The product of its (nonzero) digits is 8232, while the sum is 31.

The square root of 67072027 is about 8189.7513393265. The cubic root of 67072027 is about 406.3003007697.

The spelling of 67072027 in words is "sixty-seven million, seventy-two thousand, twenty-seven".

Divisors: 1 11 79 869 977 6241 10747 68651 77183 849013 6097457 67072027