20091902 is an even 8-digits composite number following 20091901
and preceding 20091903 . In scientific notation, it is written as 2.0091902 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 10045950 positive integers (up to 20091902) that are relatively prime to 20091902.
20091902 has 4 divisors, whose sum is 30137856
The reverse of 20091902 is 20919002
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million ninety-one thousand nine hundred two
Scientific notation
2.0091902 × 10^7
Engineering notation
2.0091902 × 10^6
Prime Factorization
2 × 10045951
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20091902
Product of the distinct prime numbers
The prime factorization of 20091902 is 2 × 10045951.
Since it has a total of 2 prime factors.
1 , 6 , 5 , 65 , 199 , 420 , 4148 , 4590 , 65093 , 5983 , 430904 , 375904 , 6165520 , 4424830 , 21225911 , 31478695 , 689509926 , 953163314 , 6351577210 , 1786286275
n×2
40183804
n×3
60275706
n×4
80367608
n×5
100459510
n÷2
10045951
n÷3
6697300.6666667
n÷3
5022975.5
n÷5
4018380.4
n2
403684525977604
n3
8.1107899348585E+21
n4
1.6296119651376E+29
n5
3.2742003901573E+36
2 √n
4482.3991343922
3 √n
271.85689379574
4 √n
66.950721686866
5 √n
28.880466913399
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
-20091901
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 20091902 can be divided by 4 positive divisors.
The sum of these divisors (counting 20091902) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100101001001111111110
3
Ternary
1101210202220112
4
Quaternary
1030221033332
5
Quinary
20120420102
6
Senary
1554350022
8
Octal
114511776
10
Decimal
20091902
12
Duodecimal
688b312
16
Hexadecimal
13293fe
20
Vigesimal
65b9f2
36
Base36
byn0e
md5
31b4295354041efa27a3d5c4aaf4c499
sha1
3a152e61589e3de0f9fe237e027553b288d235bf
sha256
096dbade0affe2e25f69e9e858420aaa4e8570078691a0ca1553ed7b7b5b649a
sha512
b64109b76f112fda123fafbb544115f6d2bc4f97c5fd1b20b2605e45767a04654fd45e5d52e76649c95c78d2cdcc956ccc47001b7a2ae2d42e4e28e9a38d936e
ripemd-160
053082ef2d42d52f7df6655c8b90b9c9a5c53190
Diameter
40183804
Circumference
126241143.43969
Area
1.2682123411791E+15
Volume
3.3974397432215E+22
Surface area
5.0728493647165E+15
Circumference
126241143.43969
Perimeter
80367608
Area
403684525977604
Diagonal
28414240.302271
Surface area
2422107155865624
Volume
8.1107899348585E+21
Space diagonal
34800195.084695
Perimeter
60275706
Area
1.7480052730564E+14
Altitude
17400097.542347
Surface area
1.7480052730564E+14
Volume
9.5586576061967E+20
Height
9471413.4340904