Base | Representation |
---|---|
bin | 101001011001010… |
… | …0111010101100111 |
3 | 10120210122111211220 |
4 | 1102302213111213 |
5 | 10321041000124 |
6 | 345455031423 |
7 | 46264206540 |
oct | 12262472547 |
9 | 3523574756 |
10 | 1389000039 |
11 | 653066319 |
12 | 32920b573 |
13 | 1919c9a1b |
14 | d268b4c7 |
15 | 81e20879 |
hex | 52ca7567 |
1389000039 has 8 divisors (see below), whose sum is σ = 2116571520. Its totient is φ = 793714296.
The previous prime is 1389000031. The next prime is 1389000049. The reversal of 1389000039 is 9300009831.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 1389000039 - 23 = 1389000031 is a prime.
It is a super-2 number, since 2×13890000392 = 3858642216684003042, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 1388999973 and 1389000009.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1389000031) 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 7 ways as a sum of consecutive naturals, for example, 33071409 + ... + 33071450.
It is an arithmetic number, because the mean of its divisors is an integer number (264571440).
Almost surely, 21389000039 is an apocalyptic number.
1389000039 is a deficient number, since it is larger than the sum of its proper divisors (727571481).
1389000039 is an equidigital number, since it uses as much as digits as its factorization.
1389000039 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 66142869.
The product of its (nonzero) digits is 5832, while the sum is 33.
The square root of 1389000039 is about 37269.2908303874. The cubic root of 1389000039 is about 1115.7513456951.
The spelling of 1389000039 in words is "one billion, three hundred eighty-nine million, thirty-nine", and thus it is an aban number.
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