20111721 is an odd 8-digits composite number following 20111720
and preceding 20111722 . In scientific notation, it is written as 2.0111721 × 10^7.
The sum of its digits is 15. It has a total of 2 prime factors and 4 positive divisors.
There are 11492400 positive integers (up to 20111721) that are relatively prime to 20111721.
20111721 has 4 divisors, whose sum is 21069444
The reverse of 20111721 is 12711102
Previous prime number is 21
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 15
Digital Root 6
Name
twenty million one hundred eleven thousand seven hundred twenty-one
Scientific notation
2.0111721 × 10^7
Engineering notation
2.0111721 × 10^6
Prime Factorization
21 × 957701
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20111721
Product of the distinct prime numbers
The prime factorization of 20111721 is 21 × 957701.
Since it has a total of 2 prime factors.
3 , 2 , 71 , 37 , 528 , 412 , 4684 , 7079 , 67274 , 87895 , 778509 , 963726 , 7199658 , 2928159 , 34338123 , 65399429 , 144629326 , 970692439 , 4302576026 , 880353486
n×2
40223442
n×3
60335163
n×4
80446884
n×5
100558605
n÷2
10055860.5
n÷3
6703907
n÷3
5027930.25
n÷5
4022344.2
n2
404481321581841
n3
8.1348154893653E+21
n4
1.6360513950859E+29
n5
3.2903809199629E+36
2 √n
4484.6093475352
3 √n
271.94625253615
4 √n
66.967225920858
5 √n
28.886162305148
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20111720
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20111721 can be divided by 4 positive divisors.
The sum of these divisors (counting 20111721) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100101110000101101001
3
Ternary
1101211210002120
4
Quaternary
1030232011221
5
Quinary
20122033341
6
Senary
1555021453
8
Octal
114560551
10
Decimal
20111721
12
Duodecimal
689a889
16
Hexadecimal
132e169
20
Vigesimal
65dj61
36
Base36
bz2ax
md5
544415b4a3308b6ea56b1206f4b60341
sha1
58d2828064c826089f1673a3f3e1ceed8a991730
sha256
caeb57f8403cc2bc8ffffa6bbe26a66174d6a2c405784cd027922fe2460b6973
sha512
f5c0eb63e93a5447d4a572f1ee8ef099b13a037a77a415cf170c000e43e1f20e376e4b277a548d83bd23ebb1711540ed5018114a86a6b7ea828dfd8d0d482e9c
ripemd-160
67a34c2b5dac99c684c82b73c25c1e41a1dd4268
Diameter
40223442
Circumference
126365669.8893
Area
1.2707155483958E+15
Volume
3.4075035439598E+22
Surface area
5.0828621935832E+15
Circumference
126365669.8893
Perimeter
80446884
Area
404481321581841
Diagonal
28442268.600864
Surface area
2426887929491046
Volume
8.1348154893653E+21
Space diagonal
34834522.59965
Perimeter
60335163
Area
1.7514554992309E+14
Altitude
17417261.299825
Surface area
1.7514554992309E+14
Volume
9.5869719937192E+20
Height
9480756.2002879