20005721 is an odd 8-digits prime number following 20005720
and preceding 20005722 . In scientific notation, it is written as 2.0005721 × 10^7.
The sum of its digits is 17. It has a total of 1 prime factors and 2 positive divisors.
There are 20005720 positive integers (up to 20005721) that are relatively prime to 20005721.
20005721 has 2 divisors, whose sum is 20005722
The reverse of 20005721 is 12750002
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty million five thousand seven hundred twenty-one
Scientific notation
2.0005721 × 10^7
Engineering notation
2.0005721 × 10^6
Prime Factorization
20005721
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20005721
Product of the distinct prime numbers
The prime factorization of 20005721 is 20005721.
Since it has a total of 1 prime factors.
9 , 5 , 50 , 11 , 785 , 795 , 1949 , 4848 , 14966 , 24230 , 491831 , 34404 , 168255 , 9687484 , 48707241 , 93506118 , 955721762 , 787500496 , 5284453840 , 4458584784
n×2
40011442
n×3
60017163
n×4
80022884
n×5
100028605
n÷2
10002860.5
n÷3
6668573.6666667
n÷3
5001430.25
n÷5
4001144.2
n2
400228872729841
n3
8.0068671639777E+21
n4
1.601831505666E+29
n5
3.2045794191364E+36
2 √n
4472.7755365097
3 √n
271.46764116401
4 √n
66.878812313839
5 √n
28.855648666532
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20005722
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10002861
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4472.7756482972
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999000286
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20005721 can be divided by 2 positive divisors.
The sum of these divisors (counting 20005721) is 20005722, the average is 10002861.
Base
System
Value
2
Binary
1001100010100001101011001
3
Ternary
1101122101200122
4
Quaternary
1030110031121
5
Quinary
20110140341
6
Senary
1552443025
8
Octal
114241531
10
Decimal
20005721
12
Duodecimal
6849475
16
Hexadecimal
1314359
20
Vigesimal
650e61
36
Base36
bwsih
md5
6e0f79cab07db4ff52ff90d95ac0df0b
sha1
372d732db074db0ddd56254dd2d1f38b66010ba5
sha256
c6fa9bf4050a79085f2fcfd669444c7ff852d80f237ba6691d4e77c737b041e1
sha512
0ba485328a2eab3e789c29ca76f7691474a1674dccf8a030eec37f945f922cb1df9efd8b3e2afc5938718935c8074867e2e6b1b17ccc1cebbbd5a83eb6285d49
ripemd-160
981301a5c0e1185df517c4c4c18b4f28613d0fc2
Diameter
40011442
Circumference
125699652.24673
Area
1.2573560863226E+15
Volume
3.3539086747496E+22
Surface area
5.0294243452904E+15
Circumference
125699652.24673
Perimeter
80022884
Area
400228872729841
Diagonal
28292361.963252
Surface area
2401373236379046
Volume
8.0068671639777E+21
Space diagonal
34650925.214048
Perimeter
60017163
Area
1.7330418555603E+14
Altitude
17325462.607024
Surface area
1.7330418555603E+14
Volume
9.4361834461809E+20
Height
9430787.3210841