Base | Representation |
---|---|
bin | 101001001001110… |
… | …0111001111100000 |
3 | 10120020100121220021 |
4 | 1102103213033200 |
5 | 10312000420214 |
6 | 345004523224 |
7 | 46135141225 |
oct | 12223471740 |
9 | 3506317807 |
10 | 1380873184 |
11 | 649515509 |
12 | 326550514 |
13 | 190112932 |
14 | d157394c |
15 | 81367924 |
hex | 524e73e0 |
1380873184 has 48 divisors (see below), whose sum is σ = 2866147200. Its totient is φ = 653076864.
The previous prime is 1380873173. The next prime is 1380873187. The reversal of 1380873184 is 4813780831.
It is a self number, because there is not a number n which added to its sum of digits gives 1380873184.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1380873187) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 508759 + ... + 511465.
It is an arithmetic number, because the mean of its divisors is an integer number (59711400).
Almost surely, 21380873184 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 1380873184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1433073600).
1380873184 is an abundant number, since it is smaller than the sum of its proper divisors (1485274016).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1380873184 is a wasteful number, since it uses less digits than its factorization.
1380873184 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3575 (or 3567 counting only the distinct ones).
The product of its (nonzero) digits is 129024, while the sum is 43.
The square root of 1380873184 is about 37160.1020450698. The cubic root of 1380873184 is about 1113.5710502311.
The spelling of 1380873184 in words is "one billion, three hundred eighty million, eight hundred seventy-three thousand, one hundred eighty-four".
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