Search a number
-
+
389388652859 is a prime number
BaseRepresentation
bin1011010101010010101…
…11110101000100111011
31101020002011110002020202
411222221113311010323
522334431443342414
6454514354112415
740063261636613
oct5525127650473
91336064402222
10389388652859
1114015881a218
126357157b70b
132a9470b14cb
1414bbcb81a43
15a1e002a9de
hex5aa95f513b

389388652859 has 2 divisors, whose sum is σ = 389388652860. Its totient is φ = 389388652858.

The previous prime is 389388652853. The next prime is 389388652907. The reversal of 389388652859 is 958256883983.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-389388652859 is a prime.

It is not a weakly prime, because it can be changed into another prime (389388652853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194694326429 + 194694326430.

It is an arithmetic number, because the mean of its divisors is an integer number (194694326430).

Almost surely, 2389388652859 is an apocalyptic number.

389388652859 is a deficient number, since it is larger than the sum of its proper divisors (1).

389388652859 is an equidigital number, since it uses as much as digits as its factorization.

389388652859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 895795200, while the sum is 74.

The spelling of 389388652859 in words is "three hundred eighty-nine billion, three hundred eighty-eight million, six hundred fifty-two thousand, eight hundred fifty-nine".