Base | Representation |
---|---|
bin | 10111001101010… |
… | …010101000000011 |
3 | 1000010122112200121 |
4 | 113031102220003 |
5 | 1244134011011 |
6 | 102345201111 |
7 | 12435335506 |
oct | 2715225003 |
9 | 1003575617 |
10 | 389360131 |
11 | 18a869036 |
12 | aa490197 |
13 | 62887714 |
14 | 399d513d |
15 | 242b0e71 |
hex | 17352a03 |
389360131 has 2 divisors, whose sum is σ = 389360132. Its totient is φ = 389360130.
The previous prime is 389360107. The next prime is 389360143. The reversal of 389360131 is 131063983.
It is a strong prime.
It is an emirp because it is prime and its reverse (131063983) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 389360131 - 215 = 389327363 is a prime.
It is a super-2 number, since 2×3893601312 = 303202623224674322, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (389360171) 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 as a sum of consecutive naturals, namely, 194680065 + 194680066.
It is an arithmetic number, because the mean of its divisors is an integer number (194680066).
Almost surely, 2389360131 is an apocalyptic number.
389360131 is a deficient number, since it is larger than the sum of its proper divisors (1).
389360131 is an equidigital number, since it uses as much as digits as its factorization.
389360131 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 11664, while the sum is 34.
The square root of 389360131 is about 19732.2104945189. The cubic root of 389360131 is about 730.2145681889.
The spelling of 389360131 in words is "three hundred eighty-nine million, three hundred sixty thousand, one hundred thirty-one".
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