20851641 is an odd 8-digits composite number following 20851640
and preceding 20851642 . In scientific notation, it is written as 2.0851641 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 13809744 positive integers (up to 20851641) that are relatively prime to 20851641.
20851641 has 8 divisors, whose sum is 21766080
The reverse of 20851641 is 14615802
Previous prime number is 4919
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million eight hundred fifty-one thousand six hundred forty-one
Scientific notation
2.0851641 × 10^7
Engineering notation
2.0851641 × 10^6
Prime Factorization
27 × 4919 × 157
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20851641
Product of the distinct prime numbers
The prime factorization of 20851641 is 27 × 4919 × 157.
Since it has a total of 3 prime factors.
1 , 8 , 92 , 45 , 989 , 328 , 7451 , 2104 , 56113 , 75067 , 67629 , 231550 , 8520652 , 2178063 , 13093966 , 98671049 , 865454387 , 606366734 , 210543919 , 4655545990
n×2
41703282
n×3
62554923
n×4
83406564
n×5
104258205
n÷2
10425820.5
n÷3
6950547
n÷3
5212910.25
n÷5
4170328.2
n2
434790932392881
n3
9.0661044323116E+21
n4
1.8904315489107E+29
n5
3.941859999296E+36
2 √n
4566.3597098783
3 √n
275.24118125418
4 √n
67.574845244945
5 √n
29.095648928179
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20851640
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20851641 can be divided by 8 positive divisors.
The sum of these divisors (counting 20851641) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111100010101110111001
3
Ternary
1110020101002000
4
Quaternary
1033202232321
5
Quinary
20314223031
6
Senary
2022531213
8
Octal
117425671
10
Decimal
20851641
12
Duodecimal
6b96b09
16
Hexadecimal
13e2bb9
20
Vigesimal
6a6921
36
Base36
cex89
md5
2838857250b23d5c4d67f53e9713709c
sha1
395ba370a4bda576f7393b0670c31477b103e483
sha256
07fe0b99317f79c530a61cc92f2fa4830251b7bd4945f93390742e5c6322159e
sha512
749d7d4fbcf6df3fb14e4081c40953f120a95f9a21bfeea8c98ffb58b155c3d51b679fcf7e903005abcf69df0b1896ee5c856caf9ab6aaf9586f2b660a348662
ripemd-160
0929104cbcbf1b0abf96a0e9a12a8097bab8e496
Diameter
41703282
Circumference
131014724.36178
Area
1.3659359990529E+15
Volume
3.7976009441637E+22
Surface area
5.4637439962117E+15
Circumference
131014724.36178
Perimeter
83406564
Area
434790932392881
Diagonal
29488673.499935
Surface area
2608745594357286
Volume
9.0661044323116E+21
Space diagonal
36116101.633186
Perimeter
62554923
Area
1.8826999639368E+14
Altitude
18058050.816593
Surface area
1.8826999639368E+14
Volume
1.0684506538388E+21
Height
9829557.8333116