20387621 is an odd 8-digits prime number following 20387620
and preceding 20387622 . In scientific notation, it is written as 2.0387621 × 10^7.
The sum of its digits is 29. It has a total of 1 prime factors and 2 positive divisors.
There are 20387620 positive integers (up to 20387621) that are relatively prime to 20387621.
20387621 has 2 divisors, whose sum is 20387622
The reverse of 20387621 is 12678302
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million three hundred eighty-seven thousand six hundred twenty-one
Scientific notation
2.0387621 × 10^7
Engineering notation
2.0387621 × 10^6
Prime Factorization
20387621
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20387621
Product of the distinct prime numbers
The prime factorization of 20387621 is 20387621.
Since it has a total of 1 prime factors.
6 , 8 , 7 , 60 , 49 , 362 , 4797 , 9153 , 36444 , 21257 , 558426 , 263229 , 6723563 , 6152167 , 80606592 , 13205083 , 830996708 , 4327060 , 1825140812 , 5342996480
n×2
40775242
n×3
61162863
n×4
81550484
n×5
101938105
n÷2
10193810.5
n÷3
6795873.6666667
n÷3
5096905.25
n÷5
4077524.2
n2
415655090039641
n3
8.4742184424491E+21
n4
1.7276915387586E+29
n5
3.5223520297118E+36
2 √n
4515.2653299668
3 √n
273.18416194528
4 √n
67.19572404526
5 √n
28.964985159265
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20387622
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10193811
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4515.2654407022
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999019013
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20387621 can be divided by 2 positive divisors.
The sum of these divisors (counting 20387621) is 20387622, the average is 10193811.
Base
System
Value
2
Binary
1001101110001011100100101
3
Ternary
1102100210120002
4
Quaternary
1031301130211
5
Quinary
20204400441
6
Senary
2004551045
8
Octal
115613445
10
Decimal
20387621
12
Duodecimal
69b2485
16
Hexadecimal
1371725
20
Vigesimal
678911
36
Base36
c4z6t
md5
69a8b1b7cee0c81e19825880d40c2b5c
sha1
c33a27a3ae5cb0d65879adc03eda619d512d8c79
sha256
fe38e8a93960db03c7633f6cb210154320d1a6b0ffe05f6c300d57dcc1989545
sha512
6f110f52343cd5c62ad869c5396f17e4fbcf5bb6d0e4d2f3795183d6f7f90d6c7e059cda570d006c6ef0ed523ffc68a90e72065a5fedab508338ce7a68030944
ripemd-160
f5aff39282cd519aa0d78eb8dc7efbe03a900e56
Diameter
40775242
Circumference
128099200.71555
Area
1.3058189772957E+15
Volume
3.5496723204951E+22
Surface area
5.223275909183E+15
Circumference
128099200.71555
Perimeter
81550484
Area
415655090039641
Diagonal
28832450.122723
Surface area
2493930540237846
Volume
8.4742184424491E+21
Space diagonal
35312395.417458
Perimeter
61162863
Area
1.7998393359332E+14
Altitude
17656197.708729
Surface area
1.7998393359332E+14
Volume
9.9869622098531E+20
Height
9610816.7075742