20451649 is an odd 8-digits prime number following 20451648
and preceding 20451650 . In scientific notation, it is written as 2.0451649 × 10^7.
The sum of its digits is 31. It has a total of 1 prime factors and 2 positive divisors.
There are 20451648 positive integers (up to 20451649) that are relatively prime to 20451649.
20451649 has 2 divisors, whose sum is 20451650
The reverse of 20451649 is 94615402
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million four hundred fifty-one thousand six hundred forty-nine
Scientific notation
2.0451649 × 10^7
Engineering notation
2.0451649 × 10^6
Prime Factorization
20451649
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20451649
Product of the distinct prime numbers
The prime factorization of 20451649 is 20451649.
Since it has a total of 1 prime factors.
1 , 7 , 21 , 43 , 623 , 743 , 5403 , 4858 , 2254 , 56440 , 903462 , 287188 , 6326943 , 4814533 , 81781234 , 14390665 , 680050325 , 865945980 , 8608165386 , 2053674997
n×2
40903298
n×3
61354947
n×4
81806596
n×5
102258245
n÷2
10225824.5
n÷3
6817216.3333333
n÷3
5112912.25
n÷5
4090329.8
n2
418269946819201
n3
8.554310139595E+21
n4
1.7494974841214E+29
n5
3.5780108471633E+36
2 √n
4522.3499422314
3 √n
273.46984439593
4 √n
67.248419626273
5 √n
28.983155447153
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20451650
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10225825
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4522.3500527933
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999022084
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20451649 can be divided by 2 positive divisors.
The sum of these divisors (counting 20451649) is 20451650, the average is 10225825.
Base
System
Value
2
Binary
1001110000001000101000001
3
Ternary
1102111001101111
4
Quaternary
1032001011001
5
Quinary
20213423044
6
Senary
2010203321
8
Octal
116010501
10
Decimal
20451649
12
Duodecimal
6a23541
16
Hexadecimal
1381141
20
Vigesimal
67g929
36
Base36
c6cld
md5
cf69de1628f1e92f37599949815df6a2
sha1
e2045727f175fad12afc08a5bd90ff108f1c9b2d
sha256
70b62ce0b8fe4918cb6c1fc8c81e885b1d38cb2f813e4e396acbfea0fe7d37ff
sha512
0148d60f65fc9730296f2340ec7e8afefbb471d2246488928d13dec740cd343c105838ed62b53cc6dacea324eb707f2facaea776f67be52c87f412cdb825afd1
ripemd-160
8d5313dbd0fa66f1958b7da34aea0b2d863757a4
Diameter
40903298
Circumference
128501500.50439
Area
1.3140337921446E+15
Volume
3.583221052144E+22
Surface area
5.2561351685784E+15
Circumference
128501500.50439
Perimeter
81806596
Area
418269946819201
Diagonal
28922999.388694
Surface area
2509619680915206
Volume
8.554310139595E+21
Space diagonal
35423295.166565
Perimeter
61354947
Area
1.811161997925E+14
Altitude
17711647.583283
Surface area
1.811161997925E+14
Volume
1.0081351180134E+21
Height
9640999.7962314