20959985 is an odd 8-digits composite number following 20959984
and preceding 20959986 . In scientific notation, it is written as 2.0959985 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 16604784 positive integers (up to 20959985) that are relatively prime to 20959985.
20959985 has 4 divisors, whose sum is 21001200
The reverse of 20959985 is 58995902
Previous prime number is 515
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
twenty million nine hundred fifty-nine thousand nine hundred eighty-five
Scientific notation
2.0959985 × 10^7
Engineering notation
2.0959985 × 10^6
Prime Factorization
515 × 40699
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20959985
Product of the distinct prime numbers
The prime factorization of 20959985 is 515 × 40699.
Since it has a total of 2 prime factors.
10 , 1 , 98 , 60 , 837 , 933 , 8019 , 7618 , 91282 , 71779 , 90162 , 526245 , 4760238 , 9293463 , 45336147 , 31928096 , 227213973 , 250248591 , 7751962957 , 2115244818
n×2
41919970
n×3
62879955
n×4
83839940
n×5
104799925
n÷2
10479992.5
n÷3
6986661.6666667
n÷3
5239996.25
n÷5
4191997
n2
439320971200225
n3
9.2081609665421E+21
n4
1.9300291573631E+29
n5
4.0453382187893E+36
2 √n
4578.2076187084
3 √n
275.71707074015
4 √n
67.662453537456
5 √n
29.125822165727
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
-20959984
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 20959985 can be divided by 4 positive divisors.
The sum of these divisors (counting 20959985) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111111101001011110001
3
Ternary
1110102212200202
4
Quaternary
1033331023301
5
Quinary
20331204420
6
Senary
2025124545
8
Octal
117751361
10
Decimal
20959985
12
Duodecimal
7029755
16
Hexadecimal
13fd2f1
20
Vigesimal
6ajjj5
36
Base36
ch8tt
md5
dd31273b93a7648990bed9ae70923e99
sha1
36794ef75a146ffc1199cb4009ba09f59c5e9656
sha256
61d998dab32f565400651a5aae8caefcdff3c806d6a323a0ef6cc84b4caa7963
sha512
20479509ef9aeef5f00482b7ab030966b4a238e9e23ff997e5d1f4e76fa3c03d3e24b16295674058f53900a87ab0376fad740af39fd23bceb313dd1acc9fcd9d
ripemd-160
a906d255f3c780b2688944d674afac99f2bd9384
Diameter
41919970
Circumference
131695469.7907
Area
1.3801675356906E+15
Volume
3.8571054460748E+22
Surface area
5.5206701427622E+15
Circumference
131695469.7907
Perimeter
83839940
Area
439320971200225
Diagonal
29641895.054137
Surface area
2635925827201350
Volume
9.2081609665421E+21
Space diagonal
36303758.945882
Perimeter
62879955
Area
1.9023156073732E+14
Altitude
18151879.472941
Surface area
1.9023156073732E+14
Volume
1.0851921769499E+21
Height
9880631.6847122