20051391 is an odd 8-digits composite number following 20051390
and preceding 20051392 . In scientific notation, it is written as 2.0051391 × 10^7.
The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors.
There are 13367592 positive integers (up to 20051391) that are relatively prime to 20051391.
20051391 has 4 divisors, whose sum is 26735192
The reverse of 20051391 is 19315002
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million fifty-one thousand three hundred ninety-one
Scientific notation
2.0051391 × 10^7
Engineering notation
2.0051391 × 10^6
Prime Factorization
3 × 6683797
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20051391
Product of the distinct prime numbers
The prime factorization of 20051391 is 3 × 6683797.
Since it has a total of 2 prime factors.
4 , 6 , 78 , 98 , 967 , 654 , 2297 , 9998 , 90544 , 81323 , 649287 , 706307 , 5047314 , 2739415 , 60727379 , 12815907 , 381261291 , 901002293 , 9853375396 , 8010988689
n×2
40102782
n×3
60154173
n×4
80205564
n×5
100256955
n÷2
10025695.5
n÷3
6683797
n÷3
5012847.75
n÷5
4010278.2
n2
402058281034881
n3
8.0618277978183E+21
n4
1.6165086134872E+29
n5
3.24132462639E+36
2 √n
4477.8779572472
3 √n
271.67405720084
4 √n
66.916948206319
5 √n
28.868811258889
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20051390
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20051391 can be divided by 4 positive divisors.
The sum of these divisors (counting 20051391) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100011111010110111111
3
Ternary
1101201201100010
4
Quaternary
1030133112333
5
Quinary
20113121031
6
Senary
1553434303
8
Octal
114372677
10
Decimal
20051391
12
Duodecimal
686b993
16
Hexadecimal
131f5bf
20
Vigesimal
65689b
36
Base36
bxrr3
md5
4092c3761e9a81963d9311b3b174d820
sha1
5928a11a1a50134637dcf5f71d8b562e647542e9
sha256
e49d6ba73b668c4665944ad3bc0fe8b5ed8b4618c30b2e8489f4f644ed04dd99
sha512
f89271fea5976f3fade7a6fa880bc3a41deda3ac4338a5a4a22710e2d226d74842284947f06590c44ee2bfaf575950f8fa6cad37856cb5b14aba7d15e6443851
ripemd-160
9aea408f21c7c309cbad6fac24c54145bca87d57
Diameter
40102782
Circumference
125986605.31971
Area
1.2631033420141E+15
Volume
3.3769305312176E+22
Surface area
5.0524133680565E+15
Circumference
125986605.31971
Perimeter
80205564
Area
402058281034881
Diagonal
28356949.096646
Surface area
2412349686209286
Volume
8.0618277978183E+21
Space diagonal
34730027.974429
Perimeter
60154173
Area
1.7409634258906E+14
Altitude
17365013.987215
Surface area
1.7409634258906E+14
Volume
9.5009551743259E+20
Height
9452316.3655486