18981922 is an even 8-digits composite number following 18981921
and preceding 18981923 . In scientific notation, it is written as 1.8981922 × 10^7.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 9484800 positive integers (up to 18981922) that are relatively prime to 18981922.
18981922 has 8 divisors, whose sum is 28491372
The reverse of 18981922 is 22918981
Previous prime number is 3041
Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4
Name
eighteen million nine hundred eighty-one thousand nine hundred twenty-two
Scientific notation
1.8981922 × 10^7
Engineering notation
1.8981922 × 10^6
Prime Factorization
2 × 3041 × 3121
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18981922
Product of the distinct prime numbers
The prime factorization of 18981922 is 2 × 3041 × 3121.
Since it has a total of 3 prime factors.
4 , 6 , 43 , 91 , 961 , 437 , 1087 , 735 , 48044 , 26727 , 205204 , 585356 , 2476604 , 3984725 , 11951857 , 19862685 , 327463790 , 414423729 , 5735218031 , 4173031787
n×2
37963844
n×3
56945766
n×4
75927688
n×5
94909610
n÷2
9490961
n÷3
6327307.3333333
n÷3
4745480.5
n÷5
3796384.4
n2
360313362814084
n3
6.8394401484946E+21
n4
1.2982571942239E+29
n5
2.4643416796698E+36
2 √n
4356.8247612223
3 √n
266.75550755186
4 √n
66.006247895349
5 √n
28.554071120524
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
-18981921
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 18981922 can be divided by 8 positive divisors.
The sum of these divisors (counting 18981922) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001000011010010000100010
3
Ternary
1022201101022011
4
Quaternary
1020122100202
5
Quinary
14324410142
6
Senary
1514503134
8
Octal
110322042
10
Decimal
18981922
12
Duodecimal
6434aaa
16
Hexadecimal
121a422
20
Vigesimal
5iceg2
36
Base36
baujm
md5
3746919909904de11613402bd1fe3577
sha1
3634f5d8a130d6e120e7adfabef57c3c51a8897f
sha256
57daf169841c35a3323ed3cfccfec3af8106c594d1a5861cfea510f0041a2492
sha512
acdb1efa045cf587e4b5611a7b123c642e6911f84a6859bcee6bb9a0f2797db26b26943f347b30e939ded43784231926b324ce14a3bc06b98d9e4e727f0401df
ripemd-160
87013f586a11b3fed8b07a0e2c1c0166ef22589e
Diameter
37963844
Circumference
119266933.41243
Area
1.131957813607E+15
Volume
2.8648979900237E+22
Surface area
4.5278312544278E+15
Circumference
119266933.41243
Perimeter
75927688
Area
360313362814084
Diagonal
26844491.532308
Surface area
2161880176884504
Volume
6.8394401484946E+21
Space diagonal
32877653.329309
Perimeter
56945766
Area
1.5602026276E+14
Altitude
16438826.664655
Surface area
1.5602026276E+14
Volume
8.0603575142002E+20
Height
8948163.8441027