20689918 is an even 8-digits composite number following 20689917
and preceding 20689919 . In scientific notation, it is written as 2.0689918 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 9736416 positive integers (up to 20689918) that are relatively prime to 20689918.
20689918 has 8 divisors, whose sum is 32860512
The reverse of 20689918 is 81998602
Previous prime number is 17
Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty million six hundred eighty-nine thousand nine hundred eighteen
Scientific notation
2.0689918 × 10^7
Engineering notation
2.0689918 × 10^6
Prime Factorization
2 × 17 × 608527
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20689918
Product of the distinct prime numbers
The prime factorization of 20689918 is 2 × 17 × 608527.
Since it has a total of 3 prime factors.
6 , 10 , 19 , 52 , 928 , 476 , 1992 , 2736 , 44981 , 59007 , 720611 , 457450 , 9842321 , 8798232 , 42930431 , 14429430 , 409642971 , 448743907 , 5346286452 , 7911333349
n×2
41379836
n×3
62069754
n×4
82759672
n×5
103449590
n÷2
10344959
n÷3
6896639.3333333
n÷3
5172479.5
n÷5
4137983.6
n2
428072706846724
n3
8.8567892026968E+21
n4
1.8324624234708E+29
n5
3.7913497279692E+36
2 √n
4548.6171524981
3 √n
274.52775368214
4 √n
67.443436689556
5 √n
29.05037573488
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
-20689917
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 20689918 can be divided by 8 positive divisors.
The sum of these divisors (counting 20689918) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110111011001111111110
3
Ternary
1102221011020021
4
Quaternary
1032323033332
5
Quinary
20244034133
6
Senary
2015242354
8
Octal
116731776
10
Decimal
20689918
12
Duodecimal
6b193ba
16
Hexadecimal
13bb3fe
20
Vigesimal
6964fi
36
Base36
cbgfy
md5
2b88fbbff52a8450bf383e5b1303ef59
sha1
e2d688839d9c9d18681f7ef0c202842890f91078
sha256
3692923f301e01a8f1ad448221fdf44306f682c27dda19085e1044bbd3b38ce3
sha512
ee54b8c2402829be66b74e36d0562eca4648a34ebdf79b0155130e5e7d94afea87c6feeb07b82243189412394a766ce65f3d1bc76216ac3ba6b77c46ba028a9b
ripemd-160
590bd5c0cbbbb1db6e45d0a74ceb7dd9194ee1f6
Diameter
41379836
Circumference
129998588.78435
Area
1.344830071032E+15
Volume
3.7099231858114E+22
Surface area
5.3793202841279E+15
Circumference
129998588.78435
Perimeter
82759672
Area
428072706846724
Diagonal
29259962.639987
Surface area
2568436241080344
Volume
8.8567892026968E+21
Space diagonal
35835989.180434
Perimeter
62069754
Area
1.8536091939802E+14
Altitude
17917994.590217
Surface area
1.8536091939802E+14
Volume
1.0437826174611E+21
Height
9753320.8799957