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389920151 is a prime number
BaseRepresentation
bin10111001111011…
…011010110010111
31000011200222220002
4113033123112113
51244304421101
6102405201515
712443160305
oct2717332627
91004628802
10389920151
11190110865
12aa70029b
1362a225aa
1439add275
1524371d6b
hex173db597

389920151 has 2 divisors, whose sum is σ = 389920152. Its totient is φ = 389920150.

The previous prime is 389920129. The next prime is 389920163. The reversal of 389920151 is 151029983.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-389920151 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (389920351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194960075 + 194960076.

It is an arithmetic number, because the mean of its divisors is an integer number (194960076).

Almost surely, 2389920151 is an apocalyptic number.

389920151 is a deficient number, since it is larger than the sum of its proper divisors (1).

389920151 is an equidigital number, since it uses as much as digits as its factorization.

389920151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 389920151 is about 19746.3958989989. The cubic root of 389920151 is about 730.5644917586.

The spelling of 389920151 in words is "three hundred eighty-nine million, nine hundred twenty thousand, one hundred fifty-one".