21992145 is an odd 8-digits composite number following 21992144
and preceding 21992146 . In scientific notation, it is written as 2.1992145 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 10053504 positive integers (up to 21992145) that are relatively prime to 21992145.
21992145 has 16 divisors, whose sum is 40214400
The reverse of 21992145 is 54129912
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million nine hundred ninety-two thousand one hundred forty-five
Scientific notation
2.1992145 × 10^7
Engineering notation
2.1992145 × 10^6
Prime Factorization
7 × 3 × 5 × 209449
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21992145
Product of the distinct prime numbers
The prime factorization of 21992145 is 7 × 3 × 5 × 209449.
Since it has a total of 4 prime factors.
1 , 7 , 58 , 77 , 274 , 31 , 8692 , 9936 , 77218 , 48433 , 927706 , 629077 , 7227257 , 7789385 , 11717766 , 10819836 , 211490581 , 413888741 , 7141920733 , 5834779896
n×2
43984290
n×3
65976435
n×4
87968580
n×5
109960725
n÷2
10996072.5
n÷3
7330715
n÷3
5498036.25
n÷5
4398429
n2
483654441701025
n3
1.0636598611783E+22
n4
2.3392161897713E+29
n5
5.1444381631798E+36
2 √n
4689.578339254
3 √n
280.17058058222
4 √n
68.480496049999
5 √n
29.407189357572
1 , 3 , 5 , 7 , 15 , 21 , 35 , 105 , 209449 , 628347 , 1047245 , 1466143 , 3141735 , 4398429 , 7330715 , 21992145
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21992144
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21992145 can be divided by 16 positive divisors.
The sum of these divisors (counting 21992145) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010011111001001011010001
3
Ternary
1112101022112220
4
Quaternary
1103321023101
5
Quinary
21112222040
6
Senary
2103211253
8
Octal
123711321
10
Decimal
21992145
12
Duodecimal
7446b29
16
Hexadecimal
14f92d1
20
Vigesimal
6h9075
36
Base36
d3d8x
md5
5aeba7a46ce907fd853bb0a9955dad6c
sha1
24b85670367b1267935de1bcf8dfe96a57fa287d
sha256
e1743ab9d5738adcccffb3a0458f7db609c2a86cdf6a18ff3ff5f26fcd018b24
sha512
94473c3629ebf36cf55bfea2bc348f14089c9c114dad42c98456465b2f898b0e012787b777c138257f2aab93236402be8a8281cfb37b980541c246b7a6d0bec7
ripemd-160
779d8e6d9408b2baf77b7ad2d601167331ebb26e
Diameter
43984290
Circumference
138180722.33736
Area
1.519445240924E+15
Volume
4.4554480077281E+22
Surface area
6.0777809636961E+15
Circumference
138180722.33736
Perimeter
87968580
Area
483654441701025
Diagonal
31101589.724676
Surface area
2901926650206150
Volume
1.0636598611783E+22
Space diagonal
38091512.507422
Perimeter
65976435
Area
2.0942851658313E+14
Altitude
19045756.253711
Surface area
2.0942851658313E+14
Volume
1.2535351678585E+21
Height
10367196.574892