20989910 is an even 8-digits composite number following 20989909
and preceding 20989911 . In scientific notation, it is written as 2.0989910 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 8106336 positive integers (up to 20989910) that are relatively prime to 20989910.
20989910 has 16 divisors, whose sum is 39085200
The reverse of 20989910 is 01998902
Previous prime number is 29
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million nine hundred eighty-nine thousand nine hundred ten
Scientific notation
2.0989910 × 10^7
Engineering notation
2.0989910 × 10^6
Prime Factorization
2 × 5 × 29 × 72379
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20989910
Product of the distinct prime numbers
The prime factorization of 20989910 is 2 × 5 × 29 × 72379.
Since it has a total of 4 prime factors.
9 , 6 , 53 , 80 , 187 , 434 , 4779 , 6294 , 95137 , 59384 , 906775 , 636885 , 7811106 , 9285314 , 35748595 , 12360886 , 269005195 , 924715894 , 8696033928 , 5126213773
n×2
41979820
n×3
62969730
n×4
83959640
n×5
104949550
n÷2
10494955
n÷3
6996636.6666667
n÷3
5247477.5
n÷5
4197982
n2
440576321808100
n3
9.2476573428831E+21
n4
1.9410749533795E+29
n5
4.0742988574691E+36
2 √n
4581.4746534276
3 √n
275.84822398009
4 √n
67.686591385796
5 √n
29.134134126822
1 , 2 , 5 , 10 , 29 , 58 , 145 , 290 , 72379 , 144758 , 361895 , 723790 , 2098991 , 4197982 , 10494955 , 20989910
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
-20989909
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 20989910 can be divided by 16 positive divisors.
The sum of these divisors (counting 20989910) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000000100011111010110
3
Ternary
1110111101202002
4
Quaternary
1100010133112
5
Quinary
20333134120
6
Senary
2025515302
8
Octal
120043726
10
Decimal
20989910
12
Duodecimal
7042b32
16
Hexadecimal
14047d6
20
Vigesimal
6b3efa
36
Base36
chvx2
md5
d2944b23ed1b295356493953cae4a684
sha1
efb74ab5904a67faf6d335b925301f21d54d3351
sha256
012fdc6fd48fb6c4b2d29de1418f526f8c818478a63f10b4b5cdcf144bedd9ff
sha512
6b8532e0cfa3bc7afe5841036b61d12e06796dc247e8579b7d45bec1bcb6c6b271f7cecda1727d52117faca38b002aed044fdc5968b6105da38e1027904aeb15
ripemd-160
8d88e62a5c897ec7e97395fd1fa715173646ae19
Diameter
41979820
Circumference
131883494.11102
Area
1.3841113359379E+15
Volume
3.8736496495089E+22
Surface area
5.5364453437518E+15
Circumference
131883494.11102
Perimeter
83959640
Area
440576321808100
Diagonal
29684215.394991
Surface area
2643457930848600
Volume
9.2476573428831E+21
Space diagonal
36355590.566298
Perimeter
62969730
Area
1.9077514349586E+14
Altitude
18177795.283149
Surface area
1.9077514349586E+14
Volume
1.0898468695404E+21
Height
9894738.4649969