20145421 is an odd 8-digits prime number following 20145420
and preceding 20145422 . In scientific notation, it is written as 2.0145421 × 10^7.
The sum of its digits is 19. It has a total of 1 prime factors and 2 positive divisors.
There are 20145420 positive integers (up to 20145421) that are relatively prime to 20145421.
20145421 has 2 divisors, whose sum is 20145422
The reverse of 20145421 is 12454102
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million one hundred forty-five thousand four hundred twenty-one
Scientific notation
2.0145421 × 10^7
Engineering notation
2.0145421 × 10^6
Prime Factorization
20145421
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20145421
Product of the distinct prime numbers
The prime factorization of 20145421 is 20145421.
Since it has a total of 1 prime factors.
4 , 9 , 67 , 6 , 428 , 792 , 5357 , 6707 , 51658 , 64566 , 798971 , 739119 , 4161021 , 7285581 , 96899289 , 48437920 , 718473340 , 829886966 , 2565570631 , 40318264
n×2
40290842
n×3
60436263
n×4
80581684
n×5
100727105
n÷2
10072710.5
n÷3
6715140.3333333
n÷3
5036355.25
n÷5
4029084.2
n2
405837987267241
n3
8.1757771112912E+21
n4
1.6470447190913E+29
n5
3.318040927192E+36
2 √n
4488.3650698222
3 √n
272.09806242884
4 √n
66.995261547532
5 √n
28.895836383812
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20145422
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10072711
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4488.3651812213
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999007219
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20145421 can be divided by 2 positive divisors.
The sum of these divisors (counting 20145421) is 20145422, the average is 10072711.
Base
System
Value
2
Binary
1001100110110010100001101
3
Ternary
1101220111022201
4
Quaternary
1030312110031
5
Quinary
20124123141
6
Senary
1555441501
8
Octal
114662415
10
Decimal
20145421
12
Duodecimal
68b6291
16
Hexadecimal
133650d
20
Vigesimal
65i3b1
36
Base36
bzsb1
md5
a40ad0b68df87c6b8de8b9237399441b
sha1
b6c7fab6c239f6b5c3083b69e4eeeee7ca3f59f4
sha256
9bf3fc152a037b182b0ad4eaab085f876fc8b713a30e318c28059347bd3f0f18
sha512
cd7a5d5abb8c9742d0e4182bdb95faf8bf09ebe1a3541568cd8a8678f4ca0ca231f264654c87011b95af2651396b95ed2aeb0e934b6c3eef1f742a40e4b05204
ripemd-160
5b6c4d8e3d124ad0ac86a7193c07c33964dfd47d
Diameter
40290842
Circumference
126577413.23415
Area
1.2749776393464E+15
Volume
3.4246615080293E+22
Surface area
5.0999105573857E+15
Circumference
126577413.23415
Perimeter
80581684
Area
405837987267241
Diagonal
28489927.597916
Surface area
2435027923603446
Volume
8.1757771112912E+21
Space diagonal
34892892.711865
Perimeter
60436263
Area
1.7573300339709E+14
Altitude
17446446.355933
Surface area
1.7573300339709E+14
Volume
9.6352457281063E+20
Height
9496642.5326386