20912998 is an even 8-digits composite number following 20912997
and preceding 20912999 . In scientific notation, it is written as 2.0912998 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 10456498 positive integers (up to 20912998) that are relatively prime to 20912998.
20912998 has 4 divisors, whose sum is 31369500
The reverse of 20912998 is 89921902
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty million nine hundred twelve thousand nine hundred ninety-eight
Scientific notation
2.0912998 × 10^7
Engineering notation
2.0912998 × 10^6
Prime Factorization
2 × 10456499
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20912998
Product of the distinct prime numbers
The prime factorization of 20912998 is 2 × 10456499.
Since it has a total of 2 prime factors.
9 , 5 , 9 , 21 , 818 , 37 , 7786 , 7464 , 39781 , 49826 , 597718 , 516756 , 4996789 , 5460061 , 16475964 , 51024690 , 751682834 , 509281624 , 9898547954 , 7028528893
n×2
41825996
n×3
62738994
n×4
83651992
n×5
104564990
n÷2
10456499
n÷3
6970999.3333333
n÷3
5228249.5
n÷5
4182599.6
n2
437353485348004
n3
9.1463725643758E+21
n4
1.9127807114605E+29
n5
4.0001979193211E+36
2 √n
4573.0731461458
3 √n
275.51088721505
4 √n
67.62450107872
5 √n
29.112751890883
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
-20912997
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 20912998 can be divided by 4 positive divisors.
The sum of these divisors (counting 20912998) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111110001101101100110
3
Ternary
1110100111020111
4
Quaternary
1033301231212
5
Quinary
20323203443
6
Senary
2024123234
8
Octal
117615546
10
Decimal
20912998
12
Duodecimal
700651a
16
Hexadecimal
13f1b66
20
Vigesimal
6ae29i
36
Base36
cg8km
md5
586c609f8edf13ff538c59c06285e6c3
sha1
6fd755c226e767c7ce321604771f101cdcba4b51
sha256
5723165b5cb972a8dea2316003ca3ce835ad4aca8c51f2c7bc98e68cca31b1fb
sha512
f476b1cebcf724f1c1600be8dbb670e576420f648fff526f8729a139470f84385406f51bdc169163b979b31b9e95df4c88f0adc5cb265102d39d3e11320cf5b4
ripemd-160
950bb4ee3a2d338aeb14e08604ad5f5700a1a38f
Diameter
41825996
Circumference
131400241.76268
Area
1.3739864965912E+15
Volume
3.8312235806984E+22
Surface area
5.4959459863647E+15
Circumference
131400241.76268
Perimeter
83651992
Area
437353485348004
Diagonal
29575445.401481
Surface area
2624120912088024
Volume
9.1463725643758E+21
Space diagonal
36222375.074586
Perimeter
62738994
Area
1.8937961437252E+14
Altitude
18111187.537293
Surface area
1.8937961437252E+14
Volume
1.0779103439215E+21
Height
9858481.8004938