20190621 is an odd 8-digits composite number following 20190620
and preceding 20190622 . In scientific notation, it is written as 2.0190621 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 12236720 positive integers (up to 20190621) that are relatively prime to 20190621.
20190621 has 8 divisors, whose sum is 29368224
The reverse of 20190621 is 12609102
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million one hundred ninety thousand six hundred twenty-one
Scientific notation
2.0190621 × 10^7
Engineering notation
2.0190621 × 10^6
Prime Factorization
3 × 11 × 611837
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20190621
Product of the distinct prime numbers
The prime factorization of 20190621 is 3 × 11 × 611837.
Since it has a total of 3 prime factors.
10 , 1 , 55 , 81 , 614 , 271 , 5248 , 8228 , 4609 , 5758 , 297620 , 42190 , 2854756 , 8130189 , 84674448 , 17346494 , 92199979 , 46297288 , 3540975551 , 8517132979
n×2
40381242
n×3
60571863
n×4
80762484
n×5
100953105
n÷2
10095310.5
n÷3
6730207
n÷3
5047655.25
n÷5
4038124.2
n2
407661176365641
n3
8.2309323084128E+21
n4
1.6618763471582E+29
n5
3.3554315474335E+36
2 √n
4493.3974896508
3 √n
272.30141129623
4 √n
67.032809053857
5 √n
28.908791399208
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
-20190620
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 20190621 can be divided by 8 positive divisors.
The sum of these divisors (counting 20190621) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101000001010110011101
3
Ternary
1101222210022210
4
Quaternary
1031001112131
5
Quinary
20132044441
6
Senary
2000431033
8
Octal
115012635
10
Decimal
20190621
12
Duodecimal
6918479
16
Hexadecimal
134159d
20
Vigesimal
663gb1
36
Base36
c0r6l
md5
9301cb408f29b11d899cdb4a094bccbb
sha1
e8349a677797b70cbc249c9237a87dc5b30039c9
sha256
caf1c2a7fd9be2c387847513e4ad9c5a16fd93067dd6c7153901e2840a5ee369
sha512
bb840eb61286fa17a582a86e9fe79cd9fb19858cad83845118f88fa79979a715eca2c2f7f6cf9f73d8d6e56e79dd108dfd90e1c5ee146d47673387e869cf32c6
ripemd-160
55c4301100f585f4dd58d137ac140d091f26914d
Diameter
40381242
Circumference
126861413.21003
Area
1.2807053568241E+15
Volume
3.4477648629739E+22
Surface area
5.1228214272963E+15
Circumference
126861413.21003
Perimeter
80762484
Area
407661176365641
Diagonal
28553850.050935
Surface area
2445967058193846
Volume
8.2309323084128E+21
Space diagonal
34971181.408367
Perimeter
60571863
Area
1.7652246743465E+14
Altitude
17485590.704184
Surface area
1.7652246743465E+14
Volume
9.7002467512769E+20
Height
9517950.0169783