Base | Representation |
---|---|
bin | 101001100101010… |
… | …1101001110000000 |
3 | 10121020112101010222 |
4 | 1103022231032000 |
5 | 10324200044314 |
6 | 350242242212 |
7 | 46401662315 |
oct | 12312551600 |
9 | 3536471128 |
10 | 1395315584 |
11 | 65668a283 |
12 | 32b356368 |
13 | 1930cb530 |
14 | d3452d0c |
15 | 8276bc8e |
hex | 532ad380 |
1395315584 has 128 divisors (see below), whose sum is σ = 3115838880. Its totient is φ = 618209280.
The previous prime is 1395315563. The next prime is 1395315587. The reversal of 1395315584 is 4855135931.
It is a tau number, because it is divible by the number of its divisors (128).
It is a super-2 number, since 2×13953155842 = 3893811157906522112, which contains 22 as substring.
It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1395315587) 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 in 15 ways as a sum of consecutive naturals, for example, 8065322 + ... + 8065494.
Almost surely, 21395315584 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1395315584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1557919440).
1395315584 is an abundant number, since it is smaller than the sum of its proper divisors (1720523296).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1395315584 is a wasteful number, since it uses less digits than its factorization.
1395315584 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 368 (or 356 counting only the distinct ones).
The product of its digits is 324000, while the sum is 44.
The square root of 1395315584 is about 37353.9232745370. The cubic root of 1395315584 is about 1117.4398325371.
The spelling of 1395315584 in words is "one billion, three hundred ninety-five million, three hundred fifteen thousand, five hundred eighty-four".
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