20145261 is an odd 8-digits composite number following 20145260
and preceding 20145262 . In scientific notation, it is written as 2.0145261 × 10^7.
The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors.
There are 13430172 positive integers (up to 20145261) that are relatively prime to 20145261.
20145261 has 4 divisors, whose sum is 26860352
The reverse of 20145261 is 16254102
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million one hundred forty-five thousand two hundred sixty-one
Scientific notation
2.0145261 × 10^7
Engineering notation
2.0145261 × 10^6
Prime Factorization
3 × 6715087
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20145261
Product of the distinct prime numbers
The prime factorization of 20145261 is 3 × 6715087.
Since it has a total of 2 prime factors.
2 , 6 , 57 , 50 , 594 , 196 , 108 , 4846 , 27434 , 41540 , 338529 , 385000 , 211068 , 1568382 , 36051432 , 83386603 , 264106726 , 118257924 , 2976702777 , 8241314595
n×2
40290522
n×3
60435783
n×4
80581044
n×5
100726305
n÷2
10072630.5
n÷3
6715087
n÷3
5036315.25
n÷5
4029052.2
n2
405831540758121
n3
8.1755823106045E+21
n4
1.6469923947411E+29
n5
3.3179091657075E+36
2 √n
4488.3472459247
3 √n
272.09734206985
4 √n
66.995128523832
5 √n
28.895790484066
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
-20145260
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 20145261 can be divided by 4 positive divisors.
The sum of these divisors (counting 20145261) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110110010001101101
3
Ternary
1101220111002210
4
Quaternary
1030312101231
5
Quinary
20124122021
6
Senary
1555441033
8
Octal
114662155
10
Decimal
20145261
12
Duodecimal
68b6179
16
Hexadecimal
133646d
20
Vigesimal
65i331
36
Base36
bzs6l
md5
0b72cf6c0f389a414c7eabeff709331f
sha1
7e8ed707e30a4021751ed64b701d4df3e621fb32
sha256
40b99ba07667868af5b7b7fdafd17549dc264bf28737e56fa4e4e629cbe7ce27
sha512
47401ebc543bf6c61eadc98452da82b7d8ec837f836e704c5e27eb99191f529195f4ef76b31a31ca3a555a0bb191672d6f2a987910cbf2eeeab0d0f9c2e62565
ripemd-160
5b064856d4860edba9d792f164d6a263ac437c6a
Diameter
40290522
Circumference
126576407.9245
Area
1.2749573870407E+15
Volume
3.4245799101085E+22
Surface area
5.099829548163E+15
Circumference
126576407.9245
Perimeter
80581044
Area
405831540758121
Diagonal
28489701.323746
Surface area
2434989244548726
Volume
8.1755823106045E+21
Space diagonal
34892615.583736
Perimeter
60435783
Area
1.7573021197676E+14
Altitude
17446307.791868
Surface area
1.7573021197676E+14
Volume
9.6350161532954E+20
Height
9496567.1079153