20851289 is an odd 8-digits prime number following 20851288
and preceding 20851290 . In scientific notation, it is written as 2.0851289 × 10^7.
The sum of its digits is 35. It has a total of 1 prime factors and 2 positive divisors.
There are 20851288 positive integers (up to 20851289) that are relatively prime to 20851289.
20851289 has 2 divisors, whose sum is 20851290
The reverse of 20851289 is 98215802
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million eight hundred fifty-one thousand two hundred eighty-nine
Scientific notation
2.0851289 × 10^7
Engineering notation
2.0851289 × 10^6
Prime Factorization
20851289
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20851289
Product of the distinct prime numbers
The prime factorization of 20851289 is 20851289.
Since it has a total of 1 prime factors.
9 , 1 , 93 , 66 , 814 , 490 , 7527 , 3503 , 60231 , 90792 , 716326 , 523272 , 9604442 , 7294951 , 34512661 , 23230427 , 995582528 , 420900351 , 2293713191 , 3783262759
n×2
41702578
n×3
62553867
n×4
83405156
n×5
104256445
n÷2
10425644.5
n÷3
6950429.6666667
n÷3
5212822.25
n÷5
4170257.8
n2
434776252961521
n3
9.0656453008378E+21
n4
1.8903039013926E+29
n5
3.9415272945765E+36
2 √n
4566.3211669789
3 √n
275.23963244817
4 √n
67.574560057606
5 √n
29.095550693824
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20851290
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10425645
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4566.3212764763
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999040827
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20851289 can be divided by 2 positive divisors.
The sum of these divisors (counting 20851289) is 20851290, the average is 10425645.
Base
System
Value
2
Binary
1001111100010101001011001
3
Ternary
1110020100120222
4
Quaternary
1033202221121
5
Quinary
20314220124
6
Senary
2022525425
8
Octal
117425131
10
Decimal
20851289
12
Duodecimal
6b96875
16
Hexadecimal
13e2a59
20
Vigesimal
6a6849
36
Base36
cewyh
md5
9c5166fb8b0c815b877d3a122de675ce
sha1
81b09266d126191e8b2c44710b77c18edb49d5a4
sha256
0086e64b807cd5586f63e5d04b93f193c8817086e371ffb770de817100859329
sha512
7c191274235bdbe6f4bb0f00aabf561aafe8f57b8da021dcbd70ce81027895fa461af9892ab8111f722a9111d5297a41ba31dde71bd512cc47cd5df035932908
ripemd-160
74ef91d9f1329ff2cc9060dbea05afba566a621d
Diameter
41702578
Circumference
131012512.68056
Area
1.3658898822592E+15
Volume
3.7974086236217E+22
Surface area
5.4635595290368E+15
Circumference
131012512.68056
Perimeter
83405156
Area
434776252961521
Diagonal
29488175.696761
Surface area
2608657517769126
Volume
9.0656453008378E+21
Space diagonal
36115491.951302
Perimeter
62553867
Area
1.8826364001344E+14
Altitude
18057745.975651
Surface area
1.8826364001344E+14
Volume
1.0683965446757E+21
Height
9829391.8989203