21491722 is an even 8-digits composite number following 21491721
and preceding 21491723 . In scientific notation, it is written as 2.1491722 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 9210732 positive integers (up to 21491722) that are relatively prime to 21491722.
21491722 has 8 divisors, whose sum is 36842976
The reverse of 21491722 is 22719412
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million four hundred ninety-one thousand seven hundred twenty-two
Scientific notation
2.1491722 × 10^7
Engineering notation
2.1491722 × 10^6
Prime Factorization
2 × 7 × 1535123
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21491722
Product of the distinct prime numbers
The prime factorization of 21491722 is 2 × 7 × 1535123.
Since it has a total of 3 prime factors.
1 , 3 , 41 , 41 , 318 , 552 , 3975 , 5679 , 28948 , 33956 , 722084 , 60768 , 7354580 , 7606978 , 55489901 , 56773586 , 676875636 , 267226503 , 2995805193 , 9974353921
n×2
42983444
n×3
64475166
n×4
85966888
n×5
107458610
n÷2
10745861
n÷3
7163907.3333333
n÷3
5372930.5
n÷5
4298344.4
n2
461894114525284
n3
9.9268999028136E+21
n4
2.133461730331E+29
n5
4.5851766405912E+36
2 √n
4635.916522113
3 √n
278.02919659541
4 √n
68.087565106361
5 √n
29.272124447931
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21491721
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21491722 can be divided by 8 positive divisors.
The sum of these divisors (counting 21491722) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111111000000001010
3
Ternary
1111102220002201
4
Quaternary
1101333000022
5
Quinary
21000213342
6
Senary
2044350414
8
Octal
121770012
10
Decimal
21491722
12
Duodecimal
724540a
16
Hexadecimal
147f00a
20
Vigesimal
6e6962
36
Base36
csn4a
md5
9a985a1772c2b454e12a100b47283cc2
sha1
e2a86c7699db1e530d0585294216d79cde2cb48a
sha256
39dd1ea69987e9476e9ceacd599c8d7538b7069ede79c8a6c4f2b60de0fedf37
sha512
30042e097573ffc6db7fd769ddeb28e22942661d21a14598cac5deb30c3fde6299cdeab0914ac76c4d2385c5d2d9df7d55d537a351a9e5339d9db9a3c01af28e
ripemd-160
79d86771bc531ccd3d73268c9636ec1c2bcd6373
Diameter
42983444
Circumference
135036471.89639
Area
1.451083156929E+15
Volume
4.15817010768E+22
Surface area
5.804332627716E+15
Circumference
135036471.89639
Perimeter
85966888
Area
461894114525284
Diagonal
30393884.731152
Surface area
2771364687151704
Volume
9.9268999028136E+21
Space diagonal
37224754.446146
Perimeter
64475166
Area
2.0000601851871E+14
Altitude
18612377.223073
Surface area
2.0000601851871E+14
Volume
1.1698963729066E+21
Height
10131294.910384