20689915 is an odd 8-digits composite number following 20689914
and preceding 20689916 . In scientific notation, it is written as 2.0689915 × 10^7.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 16478112 positive integers (up to 20689915) that are relatively prime to 20689915.
20689915 has 8 divisors, whose sum is 24938640
The reverse of 20689915 is 51998602
Previous prime number is 227
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty million six hundred eighty-nine thousand nine hundred fifteen
Scientific notation
2.0689915 × 10^7
Engineering notation
2.0689915 × 10^6
Prime Factorization
5 × 227 × 18229
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20689915
Product of the distinct prime numbers
The prime factorization of 20689915 is 5 × 227 × 18229.
Since it has a total of 3 prime factors.
6 , 8 , 45 , 85 , 136 , 483 , 2663 , 1687 , 89322 , 29543 , 865414 , 729372 , 5231610 , 7395733 , 83148119 , 23558730 , 866948765 , 397057924 , 5636085066 , 5263807352
n×2
41379830
n×3
62069745
n×4
82759660
n×5
103449575
n÷2
10344957.5
n÷3
6896638.3333333
n÷3
5172478.75
n÷5
4137983
n2
428072582707225
n3
8.856785350043E+21
n4
1.8324613606563E+29
n5
3.7913469792764E+36
2 √n
4548.6168227275
3 √n
274.52774041347
4 √n
67.443434244762
5 √n
29.05037489243
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
-20689914
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 20689915 can be divided by 8 positive divisors.
The sum of these divisors (counting 20689915) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110111011001111111011
3
Ternary
1102221011020011
4
Quaternary
1032323033323
5
Quinary
20244034130
6
Senary
2015242351
8
Octal
116731773
10
Decimal
20689915
12
Duodecimal
6b193b7
16
Hexadecimal
13bb3fb
20
Vigesimal
6964ff
36
Base36
cbgfv
md5
7ce05ffcf1cee5e3229aefc39929169d
sha1
8de102b89393401a81cbd2acdf04d047438a15db
sha256
c8badb92bfabc70481d712c28e94f8b1034d09dc120b2b6ee57d5fbdc9743316
sha512
8573301ed2dc4b75050bc0cbf49cf501ef38c71125bd5f862d6976b261d611c1e5ea23ff4c9fae4ff779c9ff5bdbf42a4a958b52b5dff239ada6789e264b94d4
ripemd-160
38f175d211e77f42e06e0f3001b10eb3204e066a
Diameter
41379830
Circumference
129998569.93479
Area
1.3448296810362E+15
Volume
3.7099215720156E+22
Surface area
5.3793187241449E+15
Circumference
129998569.93479
Perimeter
82759660
Area
428072582707225
Diagonal
29259958.397347
Surface area
2568435496243350
Volume
8.856785350043E+21
Space diagonal
35835983.984281
Perimeter
62069745
Area
1.8536086564404E+14
Altitude
17917991.992141
Surface area
1.8536086564404E+14
Volume
1.0437821634215E+21
Height
9753319.4657822