20145689 is an odd 8-digits prime number following 20145688
and preceding 20145690 . In scientific notation, it is written as 2.0145689 × 10^7.
The sum of its digits is 35. It has a total of 1 prime factors and 2 positive divisors.
There are 20145688 positive integers (up to 20145689) that are relatively prime to 20145689.
20145689 has 2 divisors, whose sum is 20145690
The reverse of 20145689 is 98654102
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million one hundred forty-five thousand six hundred eighty-nine
Scientific notation
2.0145689 × 10^7
Engineering notation
2.0145689 × 10^6
Prime Factorization
20145689
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20145689
Product of the distinct prime numbers
The prime factorization of 20145689 is 20145689.
Since it has a total of 1 prime factors.
10 , 2 , 49 , 68 , 451 , 695 , 285 , 2209 , 80493 , 23794 , 65017 , 212280 , 2960564 , 1027362 , 54471542 , 57151901 , 362782509 , 788760957 , 6702421203 , 839007856
n×2
40291378
n×3
60437067
n×4
80582756
n×5
100728445
n÷2
10072844.5
n÷3
6715229.6666667
n÷3
5036422.25
n÷5
4029137.8
n2
405848785284721
n3
8.1761034093738E+21
n4
1.6471323651708E+29
n5
3.3182616370566E+36
2 √n
4488.3949246919
3 √n
272.0992690216
4 √n
66.995484360454
5 √n
28.895913265232
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20145690
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10072845
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4488.3950360903
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999007232
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20145689 can be divided by 2 positive divisors.
The sum of these divisors (counting 20145689) is 20145690, the average is 10072845.
Base
System
Value
2
Binary
1001100110110011000011001
3
Ternary
1101220111200122
4
Quaternary
1030312120121
5
Quinary
20124130224
6
Senary
1555443025
8
Octal
114663031
10
Decimal
20145689
12
Duodecimal
68b6475
16
Hexadecimal
1336619
20
Vigesimal
65i449
36
Base36
bzsih
md5
0f014727c50469c26c925e3b555076e0
sha1
29e0b32fb09ca80ad837c5fab63d64bba8ef1150
sha256
c1c2cd8bd13c4e0d3b42699c9bd8b71719709f0bf09daecd8d6f6818cc0a52b4
sha512
1741f990681bbb23c92d0ac264544e8545ad1689258733e76e5853a422e4927ba03bec932c251e79f31887af9862df74b6379ab1fa6d5889d207009ee0ed4715
ripemd-160
c319251cc5d1b4093781eb30d84a098db56bafd4
Diameter
40291378
Circumference
126579097.12781
Area
1.2750115623188E+15
Volume
3.4247981874505E+22
Surface area
5.1000462492753E+15
Circumference
126579097.12781
Perimeter
80582756
Area
405848785284721
Diagonal
28490306.60715
Surface area
2435092711708326
Volume
8.1761034093738E+21
Space diagonal
34893356.901481
Perimeter
60437067
Area
1.7573767907581E+14
Altitude
17446678.450741
Surface area
1.7573767907581E+14
Volume
9.6356302740844E+20
Height
9496768.8690502