20985295 is an odd 8-digits composite number following 20985294
and preceding 20985296 . In scientific notation, it is written as 2.0985295 × 10^7.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 16246560 positive integers (up to 20985295) that are relatively prime to 20985295.
20985295 has 8 divisors, whose sum is 25994880
The reverse of 20985295 is 59258902
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty million nine hundred eighty-five thousand two hundred ninety-five
Scientific notation
2.0985295 × 10^7
Engineering notation
2.0985295 × 10^6
Prime Factorization
5 × 31 × 135389
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20985295
Product of the distinct prime numbers
The prime factorization of 20985295 is 5 × 31 × 135389.
Since it has a total of 3 prime factors.
1 , 4 , 66 , 44 , 386 , 347 , 1352 , 4410 , 2279 , 62620 , 812534 , 944631 , 7690295 , 6951236 , 99707394 , 40631054 , 664751500 , 618556946 , 8520374610 , 3127065302
n×2
41970590
n×3
62955885
n×4
83941180
n×5
104926475
n÷2
10492647.5
n÷3
6995098.3333333
n÷3
5246323.75
n÷5
4197059
n2
440382606237025
n3
9.2415589047528E+21
n4
1.9393683987611E+29
n5
4.069821796168E+36
2 √n
4580.9709669458
3 √n
275.82800580756
4 √n
67.682870557814
5 √n
29.132852884021
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
-20985294
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 20985295 can be divided by 8 positive divisors.
The sum of these divisors (counting 20985295) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000011010111001111
3
Ternary
1110111011102011
4
Quaternary
1100003113033
5
Quinary
20333012140
6
Senary
2025442051
8
Octal
120032717
10
Decimal
20985295
12
Duodecimal
7040327
16
Hexadecimal
14035cf
20
Vigesimal
6b334f
36
Base36
chscv
md5
8f9a0750bb6156f1a426f39ea7404c57
sha1
f8095d3d319a1331dc4145e3844321f15029575e
sha256
cc126ce2b4f91109d12ab336719b2c7f3a80ecf5ebf6b1383899b75427b72e57
sha512
60616160ea7498ce67a22c702344243f6efbce0ecb199ec9a8f2ab97d1db5ae0e380f6acfdbaeb721323c77dd948621c7e268b98ad49d770d235ccb4db0c7869
ripemd-160
8153d29fa3560c80029b212bd668b5792ce4e723
Diameter
41970590
Circumference
131854497.21083
Area
1.383502760523E+15
Volume
3.8710951417185E+22
Surface area
5.5340110420919E+15
Circumference
131854497.21083
Perimeter
83941180
Area
440382606237025
Diagonal
29677688.7994
Surface area
2642295637422150
Volume
9.2415589047528E+21
Space diagonal
36347597.151821
Perimeter
62955885
Area
1.9069126219303E+14
Altitude
18173798.575911
Surface area
1.9069126219303E+14
Volume
1.0891281617143E+21
Height
9892562.9331334