Base | Representation |
---|---|
bin | 101001010010011… |
… | …0011100111011011 |
3 | 10120112211121112001 |
4 | 1102210303213123 |
5 | 10314124132230 |
6 | 345245301431 |
7 | 46221352444 |
oct | 12244634733 |
9 | 3515747461 |
10 | 1385380315 |
11 | 651013810 |
12 | 327b64877 |
13 | 191030287 |
14 | d1dc82cb |
15 | 819580ca |
hex | 529339db |
1385380315 has 16 divisors (see below), whose sum is σ = 1876128480. Its totient is φ = 972805120.
The previous prime is 1385380313. The next prime is 1385380327. The reversal of 1385380315 is 5130835831.
It is not a de Polignac number, because 1385380315 - 21 = 1385380313 is a prime.
It is not an unprimeable number, because it can be changed into a prime (1385380313) 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 15 ways as a sum of consecutive naturals, for example, 432694 + ... + 435883.
It is an arithmetic number, because the mean of its divisors is an integer number (117258030).
Almost surely, 21385380315 is an apocalyptic number.
1385380315 is a deficient number, since it is larger than the sum of its proper divisors (490748165).
1385380315 is a wasteful number, since it uses less digits than its factorization.
1385380315 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 868622.
The product of its (nonzero) digits is 43200, while the sum is 37.
The square root of 1385380315 is about 37220.6974007742. The cubic root of 1385380315 is about 1114.7812892556.
The spelling of 1385380315 in words is "one billion, three hundred eighty-five million, three hundred eighty thousand, three hundred fifteen".
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