19902921 is an odd 8-digits composite number following 19902920
and preceding 19902922 . In scientific notation, it is written as 1.9902921 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 13268612 positive integers (up to 19902921) that are relatively prime to 19902921.
19902921 has 4 divisors, whose sum is 26537232
The reverse of 19902921 is 12920991
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
nineteen million nine hundred two thousand nine hundred twenty-one
Scientific notation
1.9902921 × 10^7
Engineering notation
1.9902921 × 10^6
Prime Factorization
3 × 6634307
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
19902921
Product of the distinct prime numbers
The prime factorization of 19902921 is 3 × 6634307.
Since it has a total of 2 prime factors.
10 , 9 , 46 , 48 , 103 , 876 , 9374 , 4361 , 50511 , 99282 , 904 , 167723 , 2256458 , 2257416 , 96678666 , 23318243 , 453958073 , 885808860 , 483469679 , 6151373547
n×2
39805842
n×3
59708763
n×4
79611684
n×5
99514605
n÷2
9951460.5
n÷3
6634307
n÷3
4975730.25
n÷5
3980584.2
n2
396126264332241
n3
7.8840697450297E+21
n4
1.5691601729382E+29
n5
3.1230870958335E+36
2 √n
4461.2689898727
3 √n
271.00186089144
4 √n
66.79273156469
5 √n
28.825932400446
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
-19902920
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 19902921 can be divided by 4 positive divisors.
The sum of these divisors (counting 19902921) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001011111011000111001001
3
Ternary
1101110011200020
4
Quaternary
1023323013021
5
Quinary
20043343141
6
Senary
1550331053
8
Octal
113730711
10
Decimal
19902921
12
Duodecimal
67b9a89
16
Hexadecimal
12fb1c9
20
Vigesimal
647h61
36
Base36
bul6x
md5
a4e29da19879eb23554a05479d93b769
sha1
01f85708ad261bfc9e498dfe60b31104b320f46d
sha256
7c253a32859483fd369ecc5466b8fcfb5d5e916c31497407780395ecffcf7ae6
sha512
2c561669d3bbbcd85c9a7a7ed98611948b4fdaa1d5eae1313bfd8406fc972492ff8459ce3386db51dd70ce20bc14e2fbf0a83ffd58110ee8becdc835c83b6a39
ripemd-160
34ab73988f2de2e1f4943a77ffddd82f1ef8b32f
Diameter
39805842
Circumference
125053740.79716
Area
1.2444673619201E+15
Volume
3.3024714121833E+22
Surface area
4.9778694476805E+15
Circumference
125053740.79716
Perimeter
79611684
Area
396126264332241
Diagonal
28146980.80904
Surface area
2376757585993446
Volume
7.8840697450297E+21
Space diagonal
34472870.39103
Perimeter
59708763
Area
1.7152770400898E+14
Altitude
17236435.195515
Surface area
1.7152770400898E+14
Volume
9.291465300097E+20
Height
9382326.9363468