21887798 is an even 8-digits composite number following 21887797
and preceding 21887799 . In scientific notation, it is written as 2.1887798 × 10^7.
The sum of its digits is 50. It has a total of 4 prime factors and 16 positive divisors.
There are 10554600 positive integers (up to 21887798) that are relatively prime to 21887798.
21887798 has 16 divisors, whose sum is 34007040
The reverse of 21887798 is 89778812
Previous prime number is 31
Is Prime? no
Number parity even
Number length 8
Sum of Digits 50
Digital Root 5
Name
twenty-one million eight hundred eighty-seven thousand seven hundred ninety-eight
Scientific notation
2.1887798 × 10^7
Engineering notation
2.1887798 × 10^6
Prime Factorization
2 × 719 × 31 × 491
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21887798
Product of the distinct prime numbers
The prime factorization of 21887798 is 2 × 719 × 31 × 491.
Since it has a total of 4 prime factors.
1 , 8 , 98 , 52 , 984 , 743 , 2367 , 8412 , 13568 , 88028 , 865650 , 833693 , 1903292 , 781813 , 68617783 , 68695619 , 359599191 , 38835819 , 9515564788 , 1370062209
n×2
43775596
n×3
65663394
n×4
87551192
n×5
109438990
n÷2
10943899
n÷3
7295932.6666667
n÷3
5471949.5
n÷5
4377559.6
n2
479075701288804
n3
1.0485912176518E+22
n4
2.2951352756536E+29
n5
5.023545729618E+36
2 √n
4678.439697164
3 √n
279.72676576771
4 √n
68.399120587651
5 √n
29.379230352986
1 , 2 , 31 , 62 , 491 , 719 , 982 , 1438 , 15221 , 22289 , 30442 , 44578 , 353029 , 706058 , 10943899 , 21887798
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
-21887797
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 21887798 can be divided by 16 positive divisors.
The sum of these divisors (counting 21887798) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010011011111101100110110
3
Ternary
1112012000102012
4
Quaternary
1103133230312
5
Quinary
21100402143
6
Senary
2101044222
8
Octal
123375466
10
Decimal
21887798
12
Duodecimal
73b6672
16
Hexadecimal
14dfb36
20
Vigesimal
6gfj9i
36
Base36
d14qe
md5
49f441275cfe92bb54dada5bb6804c72
sha1
a00b51ce2210bac7917e3a6151a1e4920d642536
sha256
0a5e48ebacb79bb43ba048a61240171d915ea0c917f54be2abe830843115665e
sha512
7217c0d348d67e78cb3f94538e7ca1db0e2814be428277097b3fc79227158f1e5314c269b4aea086dce93c6f40b97c909e8679c796d6216dca99fef04ee25b59
ripemd-160
8bdd9afb7b31e8cf80a8353584acece8ef3bb5c1
Diameter
43775596
Circumference
137525090.80011
Area
1.5050607036823E+15
Volume
4.3923286213248E+22
Surface area
6.0202428147291E+15
Circumference
137525090.80011
Perimeter
87551192
Area
479075701288804
Diagonal
30954020.782083
Surface area
2874454207732824
Volume
1.0485912176518E+22
Space diagonal
37910778.201804
Perimeter
65663394
Area
2.0744586382597E+14
Altitude
18955389.100902
Surface area
2.0744586382597E+14
Volume
1.235776601157E+21
Height
10318006.927361