20995855 is an odd 8-digits composite number following 20995854
and preceding 20995856 . In scientific notation, it is written as 2.0995855 × 10^7.
The sum of its digits is 43. It has a total of 4 prime factors and 16 positive divisors.
There are 15361920 positive integers (up to 20995855) that are relatively prime to 20995855.
20995855 has 16 divisors, whose sum is 27439200
The reverse of 20995855 is 55859902
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty million nine hundred ninety-five thousand eight hundred fifty-five
Scientific notation
2.0995855 × 10^7
Engineering notation
2.0995855 × 10^6
Prime Factorization
29 × 5 × 19 × 7621
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20995855
Product of the distinct prime numbers
The prime factorization of 20995855 is 29 × 5 × 19 × 7621.
Since it has a total of 4 prime factors.
5 , 9 , 15 , 78 , 526 , 210 , 4722 , 658 , 12793 , 44293 , 836300 , 731354 , 7929100 , 9190795 , 94397611 , 50983984 , 606414378 , 880511856 , 1771568532 , 844425844
n×2
41991710
n×3
62987565
n×4
83983420
n×5
104979275
n÷2
10497927.5
n÷3
6998618.3333333
n÷3
5248963.75
n÷5
4199171
n2
440825927181025
n3
9.2555172473334E+21
n4
1.9432749807501E+29
n5
4.0800719720957E+36
2 √n
4582.1234160594
3 √n
275.87426447431
4 √n
67.691383617558
5 √n
29.135784279759
1 , 5 , 19 , 29 , 95 , 145 , 551 , 2755 , 7621 , 38105 , 144799 , 221009 , 723995 , 1105045 , 4199171 , 20995855
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
-20995854
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 20995855 can be divided by 16 positive divisors.
The sum of these divisors (counting 20995855) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000000101111100001111
3
Ternary
1110111200220021
4
Quaternary
1100011330033
5
Quinary
20333331410
6
Senary
2030003011
8
Octal
120057417
10
Decimal
20995855
12
Duodecimal
7046467
16
Hexadecimal
1405f0f
20
Vigesimal
6b49cf
36
Base36
ci0i7
md5
e8cb60bf5d17eb93f5fd24c9ac609e79
sha1
ad5e9176852ca5fb472da9716557f026e09d37d6
sha256
11cfe11f9a12a240fe2b79d004ec5aefec04862adab61dd20928c308136a4db9
sha512
ccdc5a3faf617a10b2304eb29545c1fccb0b78ea4cee1e02c601114e18b2ea9f27fc4b3a9d82be6b7f6e067ceeb9d81c25405f9de20b1a3ce05f5d57c61fe0a8
ripemd-160
957034ffae18332e0ebab2f13a81d30a887e8b70
Diameter
41991710
Circumference
131920847.64767
Area
1.3848954943438E+15
Volume
3.8769419985861E+22
Surface area
5.5395819773753E+15
Circumference
131920847.64767
Perimeter
83983420
Area
440825927181025
Diagonal
29692622.894619
Surface area
2644955563086150
Volume
9.2555172473334E+21
Space diagonal
36365887.608349
Perimeter
62987565
Area
1.908832257928E+14
Altitude
18182943.804175
Surface area
1.908832257928E+14
Volume
1.0907731681631E+21
Height
9897540.964873