20145521 is an odd 8-digits composite number following 20145520
and preceding 20145522 . In scientific notation, it is written as 2.0145521 × 10^7.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 18314100 positive integers (up to 20145521) that are relatively prime to 20145521.
20145521 has 4 divisors, whose sum is 21976944
The reverse of 20145521 is 12554102
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million one hundred forty-five thousand five hundred twenty-one
Scientific notation
2.0145521 × 10^7
Engineering notation
2.0145521 × 10^6
Prime Factorization
11 × 1831411
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20145521
Product of the distinct prime numbers
The prime factorization of 20145521 is 11 × 1831411.
Since it has a total of 2 prime factors.
4 , 1 , 41 , 54 , 112 , 169 , 4525 , 8770 , 71339 , 12032 , 411497 , 24902 , 3962681 , 5685039 , 98110823 , 14443623 , 150472671 , 120084338 , 5844644895 , 9091794500
n×2
40291042
n×3
60436563
n×4
80582084
n×5
100727605
n÷2
10072760.5
n÷3
6715173.6666667
n÷3
5036380.25
n÷5
4029104.2
n2
405842016361441
n3
8.1758988632918E+21
n4
1.6470774224432E+29
n5
3.3181232802455E+36
2 √n
4488.3762097222
3 √n
272.09851265127
4 √n
66.995344686942
5 √n
28.895865071005
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
-20145520
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 20145521 can be divided by 4 positive divisors.
The sum of these divisors (counting 20145521) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110110010101110001
3
Ternary
1101220111110102
4
Quaternary
1030312111301
5
Quinary
20124124041
6
Senary
1555442145
8
Octal
114662561
10
Decimal
20145521
12
Duodecimal
68b6355
16
Hexadecimal
1336571
20
Vigesimal
65i3g1
36
Base36
bzsdt
md5
a60e14c64fda0d7207dbcb1700c0defd
sha1
71cc553be6686b400426e260545816757366738e
sha256
956ed8af3ddda02471f35c53e8411c957c72c7193b80a574adaf0a57c8bb73fe
sha512
555055161a092f607200273d85586d49c4a45467e79e581a7ec679c31998fdbdee0f7995769c81a1387129f73533b0f03ba2486ce8138ed8ad46068f58b3b2f8
ripemd-160
171aeeb05ee26ed2f07dbddebe7b9e3b9ce9eb9f
Diameter
40291042
Circumference
126578041.55268
Area
1.2749902971192E+15
Volume
3.4247125073881E+22
Surface area
5.0999611884767E+15
Circumference
126578041.55268
Perimeter
80582084
Area
405842016361441
Diagonal
28490069.019272
Surface area
2435052098168646
Volume
8.1758988632918E+21
Space diagonal
34893065.916946
Perimeter
60436563
Area
1.7573474804605E+14
Altitude
17446532.958473
Surface area
1.7573474804605E+14
Volume
9.635389214215E+20
Height
9496689.6730907