20091621 is an odd 8-digits composite number following 20091620
and preceding 20091622 . In scientific notation, it is written as 2.0091621 × 10^7.
The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors.
There are 11892720 positive integers (up to 20091621) that are relatively prime to 20091621.
20091621 has 16 divisors, whose sum is 29905920
The reverse of 20091621 is 12619002
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million ninety-one thousand six hundred twenty-one
Scientific notation
2.0091621 × 10^7
Engineering notation
2.0091621 × 10^6
Prime Factorization
3 × 11 × 43 × 14159
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20091621
Product of the distinct prime numbers
The prime factorization of 20091621 is 3 × 11 × 43 × 14159.
Since it has a total of 4 prime factors.
1 , 1 , 16 , 98 , 308 , 321 , 8387 , 8547 , 99541 , 56832 , 585419 , 609163 , 4372647 , 3784394 , 3400331 , 41895689 , 447036675 , 272558464 , 9133468346 , 3840431990
n×2
40183242
n×3
60274863
n×4
80366484
n×5
100458105
n÷2
10045810.5
n÷3
6697207
n÷3
5022905.25
n÷5
4018324.2
n2
403673234407641
n3
8.1104496335625E+21
n4
1.6295208017713E+29
n5
3.2739714360804E+36
2 √n
4482.3677894613
3 √n
271.85562641708
4 √n
66.95048759689
5 √n
28.880386130041
1 , 3 , 11 , 33 , 43 , 129 , 473 , 1419 , 14159 , 42477 , 155749 , 467247 , 608837 , 1826511 , 6697207 , 20091621
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20091620
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20091621 can be divided by 16 positive divisors.
The sum of these divisors (counting 20091621) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100101001001011100101
3
Ternary
1101210202112010
4
Quaternary
1030221023211
5
Quinary
20120412441
6
Senary
1554344433
8
Octal
114511345
10
Decimal
20091621
12
Duodecimal
688b119
16
Hexadecimal
13292e5
20
Vigesimal
65b911
36
Base36
bymsl
md5
260cf1a179312ed9ba900c166030e323
sha1
5546aa38527094cdd5ff6bb16db7a2f0dcfd4994
sha256
94424ef6e7450d2508883ee1304494021c538b7349ed7b316565f39a83e5a7c3
sha512
38ea776ca46a06cd4865dfda556e245e17f4157df2703d88a866e8e3adc5d66bbb58aadd38738b9361c65ec541a292793c003984a1248e7a4e3a16515cf9b5fa
ripemd-160
d66e2b30155491e74e069dd866c99707701ef4b1
Diameter
40183242
Circumference
126239377.86462
Area
1.2681768676659E+15
Volume
3.397297198148E+22
Surface area
5.0727074706635E+15
Circumference
126239377.86462
Perimeter
80366484
Area
403673234407641
Diagonal
28413842.90826
Surface area
2422039406445846
Volume
8.1104496335625E+21
Space diagonal
34799708.378418
Perimeter
60274863
Area
1.7479563791242E+14
Altitude
17399854.189209
Surface area
1.7479563791242E+14
Volume
9.5582565572733E+20
Height
9471280.96942