21931641 is an odd 8-digits composite number following 21931640
and preceding 21931642 . In scientific notation, it is written as 2.1931641 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 10 positive divisors.
There are 14621040 positive integers (up to 21931641) that are relatively prime to 21931641.
21931641 has 10 divisors, whose sum is 32762202
The reverse of 21931641 is 14613912
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million nine hundred thirty-one thousand six hundred forty-one
Scientific notation
2.1931641 × 10^7
Engineering notation
2.1931641 × 10^6
Prime Factorization
3 × 9 × 3 × 270761
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
7310547
Product of the distinct prime numbers
The prime factorization of 21931641 is 3 × 9 × 3 × 270761.
Since it has a total of 4 prime factors.
4 , 9 , 32 , 93 , 216 , 224 , 7254 , 6966 , 50319 , 15894 , 241306 , 380694 , 328136 , 5137245 , 94002179 , 54442821 , 275072977 , 134722765 , 4767040576 , 5183036820
n×2
43863282
n×3
65794923
n×4
87726564
n×5
109658205
n÷2
10965820.5
n÷3
7310547
n÷3
5482910.25
n÷5
4386328.2
n2
480996876952881
n3
1.0549050827452E+22
n4
2.3135799563842E+29
n5
5.0740605028215E+36
2 √n
4683.1229964629
3 √n
279.91341285242
4 √n
68.433347108431
5 √n
29.390990720927
10 divisors
τ
Total Divisors
10
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21931640
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.1
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
10
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21931641 can be divided by 10 positive divisors.
The sum of these divisors (counting 21931641) is 1, the average is 0.1.
Base
System
Value
2
Binary
1010011101010011001111001
3
Ternary
1112021020120000
4
Quaternary
1103222121321
5
Quinary
21103303031
6
Senary
2102023213
8
Octal
123523171
10
Decimal
21931641
12
Duodecimal
7417b09
16
Hexadecimal
14ea679
20
Vigesimal
6h1921
36
Base36
d22k9
md5
ae663c9c62cd9986f9b594b6d8912cca
sha1
36fdc63cacbf1fb0216ee7c8e98f2bb71833a8d7
sha256
7030418c804dbaf96b18a44052404dc12eb91a9301b0cf9c3235f018cedfc245
sha512
3ac204b9529ab668a3649de1ac8c74b2172dc9d88758e373f9527df3006008c80a7c9a90c1cb00c01596d629908c04a4140227fae86e267c08cb33c8101c4923
ripemd-160
4663df2fd197a63a31421a45ec23368038d73830
Diameter
43863282
Circumference
137800564.49354
Area
1.5110962550348E+15
Volume
4.4187760775824E+22
Surface area
6.0443850201392E+15
Circumference
137800564.49354
Perimeter
87726564
Area
480996876952881
Diagonal
31016024.147298
Surface area
2885981261717286
Volume
1.0549050827452E+22
Space diagonal
37986716.505361
Perimeter
65794923
Area
2.0827775729109E+14
Altitude
18993358.25268
Surface area
2.0827775729109E+14
Volume
1.2432175625288E+21
Height
10338674.715766