21691829 is an odd 8-digits composite number following 21691828
and preceding 21691830 . In scientific notation, it is written as 2.1691829 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 20241760 positive integers (up to 21691829) that are relatively prime to 21691829.
21691829 has 8 divisors, whose sum is 23188032
The reverse of 21691829 is 92819612
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-one million six hundred ninety-one thousand eight hundred twenty-nine
Scientific notation
2.1691829 × 10^7
Engineering notation
2.1691829 × 10^6
Prime Factorization
41 × 23 × 23003
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21691829
Product of the distinct prime numbers
The prime factorization of 21691829 is 41 × 23 × 23003.
Since it has a total of 3 prime factors.
4 , 2 , 74 , 85 , 198 , 407 , 6126 , 5860 , 38558 , 2832 , 30113 , 979888 , 5881736 , 9858552 , 57462091 , 58628776 , 268105348 , 288854855 , 6745004121 , 997848071
n×2
43383658
n×3
65075487
n×4
86767316
n×5
108459145
n÷2
10845914.5
n÷3
7230609.6666667
n÷3
5422957.25
n÷5
4338365.8
n2
470535445365241
n3
1.0206774419302E+22
n4
2.2140360534507E+29
n5
4.8026491471287E+36
2 √n
4657.4487651503
3 √n
278.88943174224
4 √n
68.245503625882
5 √n
29.326432450526
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
-21691828
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 21691829 can be divided by 8 positive divisors.
The sum of these divisors (counting 21691829) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010101111110110110101
3
Ternary
1111211001121002
4
Quaternary
1102233312311
5
Quinary
21023114304
6
Senary
2052533045
8
Octal
122576665
10
Decimal
21691829
12
Duodecimal
7321185
16
Hexadecimal
14afdb5
20
Vigesimal
6fb9b9
36
Base36
cwxit
md5
374a1e8a0bdf1ab09f7376944f5ec826
sha1
fd54d38f4220d144af378180f50440d2352a604e
sha256
f5d08a001703160afb5f7e51af88e8045745e3b8ba11c3cb75f100b63b398cfa
sha512
e973aa20997dfef243c015631b7e07527417f333f613b7cfc4ddd6a3d22b5c5ff2b8cf6b1d364fd18b69691215113a824cd59343fd31af4f7d2e9a6572638f9a
ripemd-160
62f7051b478d56d0bc5582d3143028b0326c2e82
Diameter
43383658
Circumference
136293781.25865
Area
1.478230698413E+15
Volume
4.2754036710035E+22
Surface area
5.9129227936522E+15
Circumference
136293781.25865
Perimeter
86767316
Area
470535445365241
Diagonal
30676878.764478
Surface area
2823212672191446
Volume
1.0206774419302E+22
Space diagonal
37571349.937096
Perimeter
65075487
Area
2.0374782453366E+14
Altitude
18785674.968548
Surface area
2.0374782453366E+14
Volume
1.2028799009883E+21
Height
10225626.254826