21998144 is an even 8-digits composite number following 21998143
and preceding 21998145 . In scientific notation, it is written as 2.1998144 × 10^7.
The sum of its digits is 38. It has a total of 8 prime factors and 28 positive divisors.
There are 9427584 positive integers (up to 21998144) that are relatively prime to 21998144.
21998144 has 28 divisors, whose sum is 49889664
The reverse of 21998144 is 44189912
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-one million nine hundred ninety-eight thousand one hundred forty-four
Scientific notation
2.1998144 × 10^7
Engineering notation
2.1998144 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 2 × 7 × 49103
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
8
Total number of prime factors
rad
Radical
687442
Product of the distinct prime numbers
The prime factorization of 21998144 is 2 × 2 × 2 × 2 × 2 × 2 × 7 × 49103.
Since it has a total of 8 prime factors.
8 , 1 , 32 , 95 , 804 , 697 , 5750 , 9947 , 20707 , 94458 , 591749 , 56971 , 2452694 , 829158 , 28386667 , 27254529 , 984259719 , 529084853 , 3543214088 , 5977980881
n×2
43996288
n×3
65994432
n×4
87992576
n×5
109990720
n÷2
10999072
n÷3
7332714.6666667
n÷3
5499536
n÷5
4399628.8
n2
483918339444736
n3
1.0645305315346E+22
n4
2.3417695925095E+29
n5
5.1514584710845E+36
2 √n
4690.2179053856
3 √n
280.1960531697
4 √n
68.48516558632
5 √n
29.408793516542
1 , 2 , 4 , 7 , 8 , 14 , 16 , 28 , 32 , 56 , 64 , 112 , 224 , 448 , 49103 , 98206 , 196412 , 343721 , 392824 , 687442 , 785648 , 1374884 , 1571296 , 2749768 , 3142592 , 5499536 , 10999072 , 21998144
28 divisors
τ
Total Divisors
28
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21998143
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.035714285714286
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
28
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21998144 can be divided by 28 positive divisors.
The sum of these divisors (counting 21998144) is 1, the average is 0.035714285714286.
Base
System
Value
2
Binary
1010011111010101001000000
3
Ternary
1112101121210002
4
Quaternary
1103322221000
5
Quinary
21112420034
6
Senary
2103255132
8
Octal
123725100
10
Decimal
21998144
12
Duodecimal
744a4a8
16
Hexadecimal
14faa40
20
Vigesimal
6h9f74
36
Base36
d3hvk
md5
9f16c75f89c8bae5647f5a375fd14fa0
sha1
aaa496166ebe2a1d0fbecc97c9b6f68e4171f915
sha256
81a7d55623c17367c46400dc433fe5fba5c6bdb8bfb193918e73a9f5df57abe3
sha512
aa9db27d45cb9c79bfa4f069dc45f3cdc63b610f7353a16cd9ce0b3a3f671082e3aef8825b337a79320d56d4ae7a62b30a96edee5b7570c9208ad4f5ef2420ab
ripemd-160
a1de20ecc64e224bfc4a7c7068d0c5572ec2885d
Diameter
43996288
Circumference
138218415.16602
Area
1.520274300137E+15
Volume
4.4590950631883E+22
Surface area
6.0810972005478E+15
Circumference
138218415.16602
Perimeter
87992576
Area
483918339444736
Diagonal
31110073.591836
Surface area
2903510036668416
Volume
1.0645305315346E+22
Space diagonal
38101903.080216
Perimeter
65994432
Area
2.0954278765816E+14
Altitude
19050951.540108
Surface area
2.0954278765816E+14
Volume
1.2545612627137E+21
Height
10370024.530612