21887814 is an even 8-digits composite number following 21887813
and preceding 21887815 . In scientific notation, it is written as 2.1887814 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 6734688 positive integers (up to 21887814) that are relatively prime to 21887814.
21887814 has 16 divisors, whose sum is 47143152
The reverse of 21887814 is 41878812
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-one million eight hundred eighty-seven thousand eight hundred fourteen
Scientific notation
2.1887814 × 10^7
Engineering notation
2.1887814 × 10^6
Prime Factorization
2 × 3 × 13 × 280613
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21887814
Product of the distinct prime numbers
The prime factorization of 21887814 is 2 × 3 × 13 × 280613.
Since it has a total of 4 prime factors.
2 , 8 , 22 , 62 , 80 , 475 , 6028 , 4694 , 60947 , 87141 , 254057 , 506033 , 998396 , 5424964 , 48413090 , 24672539 , 883232203 , 324768669 , 6707878040 , 8096954642
n×2
43775628
n×3
65663442
n×4
87551256
n×5
109439070
n÷2
10943907
n÷3
7295938
n÷3
5471953.5
n÷5
4377562.8
n2
479076401698596
n3
1.0485935172168E+22
n4
2.2951419866447E+29
n5
5.0235640907271E+36
2 √n
4678.4414071355
3 √n
279.72683392786
4 √n
68.399133087602
5 √n
29.379234648233
1 , 2 , 3 , 6 , 13 , 26 , 39 , 78 , 280613 , 561226 , 841839 , 1683678 , 3647969 , 7295938 , 10943907 , 21887814
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21887813
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21887814 can be divided by 16 positive divisors.
The sum of these divisors (counting 21887814) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010011011111101101000110
3
Ternary
1112012000102210
4
Quaternary
1103133231012
5
Quinary
21100402224
6
Senary
2101044250
8
Octal
123375506
10
Decimal
21887814
12
Duodecimal
73b6686
16
Hexadecimal
14dfb46
20
Vigesimal
6gfjae
36
Base36
d14qu
md5
9619a8eafa22941e1c9523b9802cb84b
sha1
906e165ef80967237c9cea743f0ba321c8a50c18
sha256
26b3eefaa711d6ad85ed69774d1619bdee3745561c83a83650d88c043ec14994
sha512
e68b62559f8f23abe9f63e90b012cdeabe3dfaeb6d960574d511d73f973a291217a7cffbc9c941b3e3695f36e1963ddf8c6f54a1b4a9089c1fb0117207595a47
ripemd-160
69c880cf06ecf15ad3022ffcc30ad23eba82349f
Diameter
43775628
Circumference
137525191.33108
Area
1.5050629040845E+15
Volume
4.3923382537203E+22
Surface area
6.0202516163382E+15
Circumference
137525191.33108
Perimeter
87551256
Area
479076401698596
Diagonal
30954043.4095
Surface area
2874458410191576
Volume
1.0485935172168E+22
Space diagonal
37910805.914617
Perimeter
65663442
Area
2.0744616711231E+14
Altitude
18955402.957309
Surface area
2.0744616711231E+14
Volume
1.2357793112204E+21
Height
10318014.469833