Base | Representation |
---|---|
bin | 101001010001111… |
… | …0000000000011001 |
3 | 10120112022112122101 |
4 | 1102203300000121 |
5 | 10314041302020 |
6 | 345235323401 |
7 | 46216120201 |
oct | 12243600031 |
9 | 3515275571 |
10 | 1385103385 |
11 | 650944746 |
12 | 327a50561 |
13 | 190c64203 |
14 | d1d55401 |
15 | 8190100a |
hex | 528f0019 |
1385103385 has 8 divisors (see below), whose sum is σ = 1662385536. Its totient is φ = 1107908400.
The previous prime is 1385103383. The next prime is 1385103403. The reversal of 1385103385 is 5833015831.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 1385103385 - 21 = 1385103383 is a prime.
It is a super-2 number, since 2×13851033852 = 3837022774276916450, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1385103383) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20710 + ... + 56560.
It is an arithmetic number, because the mean of its divisors is an integer number (207798192).
Almost surely, 21385103385 is an apocalyptic number.
It is an amenable number.
1385103385 is a deficient number, since it is larger than the sum of its proper divisors (277282151).
1385103385 is an equidigital number, since it uses as much as digits as its factorization.
1385103385 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 43583.
The product of its (nonzero) digits is 43200, while the sum is 37.
The square root of 1385103385 is about 37216.9771072289. The cubic root of 1385103385 is about 1114.7070047308.
The spelling of 1385103385 in words is "one billion, three hundred eighty-five million, one hundred three thousand, three hundred eighty-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •