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188869067 is a prime number
BaseRepresentation
bin10110100000111…
…10100111001011
3111011101112122122
423100132213023
5341322302232
630424041455
74452234452
oct1320364713
9434345578
10188869067
1197680142
125330328b
133018aa5a
141b125b99
15118ab312
hexb41e9cb

188869067 has 2 divisors, whose sum is σ = 188869068. Its totient is φ = 188869066.

The previous prime is 188869061. The next prime is 188869097. The reversal of 188869067 is 760968881.

It is a weak prime.

It is an emirp because it is prime and its reverse (760968881) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 188869067 - 26 = 188869003 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (188869061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94434533 + 94434534.

It is an arithmetic number, because the mean of its divisors is an integer number (94434534).

Almost surely, 2188869067 is an apocalyptic number.

188869067 is a deficient number, since it is larger than the sum of its proper divisors (1).

188869067 is an equidigital number, since it uses as much as digits as its factorization.

188869067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1161216, while the sum is 53.

The square root of 188869067 is about 13742.9642726742. The cubic root of 188869067 is about 573.7468026206.

The spelling of 188869067 in words is "one hundred eighty-eight million, eight hundred sixty-nine thousand, sixty-seven".