20785621 is an odd 8-digits prime number following 20785620
and preceding 20785622 . In scientific notation, it is written as 2.0785621 × 10^7.
The sum of its digits is 31. It has a total of 1 prime factors and 2 positive divisors.
There are 20785620 positive integers (up to 20785621) that are relatively prime to 20785621.
20785621 has 2 divisors, whose sum is 20785622
The reverse of 20785621 is 12658702
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million seven hundred eighty-five thousand six hundred twenty-one
Scientific notation
2.0785621 × 10^7
Engineering notation
2.0785621 × 10^6
Prime Factorization
20785621
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20785621
Product of the distinct prime numbers
The prime factorization of 20785621 is 20785621.
Since it has a total of 1 prime factors.
4 , 5 , 54 , 25 , 922 , 160 , 7363 , 5588 , 95582 , 48878 , 22962 , 154540 , 3862767 , 8770061 , 1555107 , 79332699 , 604004582 , 909325612 , 8920971595 , 6618801741
n×2
41571242
n×3
62356863
n×4
83142484
n×5
103928105
n÷2
10392810.5
n÷3
6928540.3333333
n÷3
5196405.25
n÷5
4157124.2
n2
432042040355641
n3
8.9802621068991E+21
n4
1.8666032463467E+29
n5
3.8798507635931E+36
2 √n
4559.1250257039
3 √n
274.95038664197
4 √n
67.521293128197
5 √n
29.077201151032
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20785622
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10392811
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4559.1251353741
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999037796
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20785621 can be divided by 2 positive divisors.
The sum of these divisors (counting 20785621) is 20785622, the average is 10392811.
Base
System
Value
2
Binary
1001111010010100111010101
3
Ternary
1110010000111211
4
Quaternary
1033102213111
5
Quinary
20310114441
6
Senary
2021301421
8
Octal
117224725
10
Decimal
20785621
12
Duodecimal
6b64871
16
Hexadecimal
13d29d5
20
Vigesimal
69i411
36
Base36
cdiad
md5
2844934c6414888c529309348a25d266
sha1
f274183c5009117166c697d0a88af0fe30244172
sha256
1886126122ad3f4c9f31779862b647c89d6caefc9338a92e4818e94c49f58092
sha512
4bf7ca9fecb49caeaa7ea912e5352b0dadb993360617bfcb22298fec3cba92448bd91d36c840dc1c069b6b80d362f20a24471e6ddf387154dbbb05953ccd473b
ripemd-160
5a1378f848b829da3b0ffe5613be3816035f6fa9
Diameter
41571242
Circumference
130599908.4678
Area
1.3573001000232E+15
Volume
3.7616433949793E+22
Surface area
5.4292004000929E+15
Circumference
130599908.4678
Perimeter
83142484
Area
432042040355641
Diagonal
29395307.120547
Surface area
2592252242133846
Volume
8.9802621068991E+21
Space diagonal
36001751.638871
Perimeter
62356863
Area
1.8707969122542E+14
Altitude
18000875.819435
Surface area
1.8707969122542E+14
Volume
1.0583340387702E+21
Height
9798435.706849