21691427 is an odd 8-digits composite number following 21691426
and preceding 21691428 . In scientific notation, it is written as 2.1691427 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 21671880 positive integers (up to 21691427) that are relatively prime to 21691427.
21691427 has 4 divisors, whose sum is 21710976
The reverse of 21691427 is 72419612
Previous prime number is 1181
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million six hundred ninety-one thousand four hundred twenty-seven
Scientific notation
2.1691427 × 10^7
Engineering notation
2.1691427 × 10^6
Prime Factorization
1181 × 18367
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21691427
Product of the distinct prime numbers
The prime factorization of 21691427 is 1181 × 18367.
Since it has a total of 2 prime factors.
10 , 8 , 41 , 72 , 477 , 429 , 3770 , 7202 , 17151 , 89214 , 465665 , 809542 , 2309106 , 555011 , 40608163 , 43613459 , 346127789 , 86186934 , 4505189271 , 2779373634
n×2
43382854
n×3
65074281
n×4
86765708
n×5
108457135
n÷2
10845713.5
n÷3
7230475.6666667
n÷3
5422856.75
n÷5
4338285.4
n2
470518005296329
n3
1.0206206964071E+22
n4
2.2138719330804E+29
n5
4.8022041423762E+36
2 √n
4657.4056082759
3 √n
278.8877089085
4 √n
68.245187436741
5 √n
29.326323752331
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21691426
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21691427 can be divided by 4 positive divisors.
The sum of these divisors (counting 21691427) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010101111110000100011
3
Ternary
1111211001001012
4
Quaternary
1102233300203
5
Quinary
21023111202
6
Senary
2052531135
8
Octal
122576043
10
Decimal
21691427
12
Duodecimal
7320aab
16
Hexadecimal
14afc23
20
Vigesimal
6fb8b7
36
Base36
cwx7n
md5
57af24bdc8a981c50456918a78b88aab
sha1
b064d184de5d28bd207ac39dd31dbb484267f8f5
sha256
86708f51f53569350ed4b26a59100315c43a1d29dc4fbcac0b1cefa94eb2e928
sha512
e77b881849ed5b4294285af73aa3d6f59eb7508ea3685d524fd644bdc259cc0d5b47009fdc39d4e7eda57bde1273978df15b8ddc9bc44466535e2f3737a78a2a
ripemd-160
7613d70f5bba0a11274201111c2ccc53d5455566
Diameter
43382854
Circumference
136291255.41816
Area
1.4781759088207E+15
Volume
4.2751659759123E+22
Surface area
5.9127036352827E+15
Circumference
136291255.41816
Perimeter
86765708
Area
470518005296329
Diagonal
30676310.250626
Surface area
2823108031777974
Volume
1.0206206964071E+22
Space diagonal
37570653.652671
Perimeter
65074281
Area
2.037402727623E+14
Altitude
18785326.826336
Surface area
2.037402727623E+14
Volume
1.202813025748E+21
Height
10225436.750209