21691873 is an odd 8-digits composite number following 21691872
and preceding 21691874 . In scientific notation, it is written as 2.1691873 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 18593028 positive integers (up to 21691873) that are relatively prime to 21691873.
21691873 has 4 divisors, whose sum is 24790720
The reverse of 21691873 is 37819612
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-one million six hundred ninety-one thousand eight hundred seventy-three
Scientific notation
2.1691873 × 10^7
Engineering notation
2.1691873 × 10^6
Prime Factorization
7 × 3098839
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21691873
Product of the distinct prime numbers
The prime factorization of 21691873 is 7 × 3098839.
Since it has a total of 2 prime factors.
1 , 8 , 8 , 89 , 777 , 435 , 227 , 8027 , 70242 , 92298 , 616034 , 491587 , 213680 , 1998630 , 6090570 , 214264 , 408274306 , 979768378 , 9866103192 , 1866694609
n×2
43383746
n×3
65075619
n×4
86767492
n×5
108459365
n÷2
10845936.5
n÷3
7230624.3333333
n÷3
5422968.25
n÷5
4338374.6
n2
470537354248129
n3
1.0206836530106E+22
n4
2.2140540174283E+29
n5
4.8026978561194E+36
2 √n
4657.453488764
3 √n
278.88962030981
4 √n
68.245538233382
5 √n
29.326444347743
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
-21691872
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 21691873 can be divided by 4 positive divisors.
The sum of these divisors (counting 21691873) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010101111110111100001
3
Ternary
1111211001122201
4
Quaternary
1102233313201
5
Quinary
21023114443
6
Senary
2052533201
8
Octal
122576741
10
Decimal
21691873
12
Duodecimal
7321201
16
Hexadecimal
14afde1
20
Vigesimal
6fb9dd
36
Base36
cwxk1
md5
90b709d629800a49932a7185edbaf805
sha1
43719edc905ff7bdd5609edd5a172fb48a963cf3
sha256
743403486d49c5ae3a9935b5b57863e951d63bce78441ef4a33698ca9b4b1e19
sha512
e0d8fb94a602399ce2122c5e2c298923a46623798dcef11f630a8ae3b62fcbdf9bc2f2178c2e17bbddf29b61f75c87e2fcb143520c0a7e1be4d6aa3072abc153
ripemd-160
386e40add72be5f9434096fc2e2edf105b0cb554
Diameter
43383746
Circumference
136294057.71881
Area
1.4782366953455E+15
Volume
4.2754296879166E+22
Surface area
5.912946781382E+15
Circumference
136294057.71881
Perimeter
86767492
Area
470537354248129
Diagonal
30676940.989875
Surface area
2823224125488774
Volume
1.0206836530106E+22
Space diagonal
37571426.147332
Perimeter
65075619
Area
2.037486511042E+14
Altitude
18785713.073666
Surface area
2.037486511042E+14
Volume
1.2028872208168E+21
Height
10225646.996625